747474 has 48 divisors (see below), whose sum is σ = 1891008. Its totient is φ = 191808.

The previous prime is 747463. The next prime is 747493. The reversal of 747474 is 474747.

It is an alternating number because its digits alternate between odd and even.

747474 is an undulating number in base 10.

747474 is a modest number, since divided by 7474 gives 74 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20184 + ... + 20220.

It is an arithmetic number, because the mean of its divisors is an integer number (39396).

2⁷⁴⁷⁴⁷⁴ is an apocalyptic number.

747474 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 747474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945504).

747474 is an abundant number, since it is smaller than the sum of its proper divisors (1143534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

747474 is a wasteful number, since it uses less digits than its factorization.

747474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 62 counting only the distinct ones).

The product of its digits is 21952, while the sum is 33.

The square root of 747474 is about 864.5657869705. The cubic root of 747474 is about 90.7539138778.

Multiplying 747474 by its sum of digits (33), we get a palindrome (24666642).

Adding to 747474 its reverse (474747), we get a palindrome (1222221).

It can be divided in two parts, 747 and 474, that added together give a palindrome (1221).

The spelling of 747474 in words is "seven hundred forty-seven thousand, four hundred seventy-four", and thus it is an iban number.