74989951 has 8 divisors (see below), whose sum is σ = 76604720. Its totient is φ = 73389888.

The previous prime is 74989927. The next prime is 74989963. The reversal of 74989951 is 15998947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74989951 - 2¹¹ = 74987903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74989921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6955 + ... + 14083.

It is an arithmetic number, because the mean of its divisors is an integer number (9575590).

Almost surely, 2^74989951 is an apocalyptic number.

74989951 is a deficient number, since it is larger than the sum of its proper divisors (1614769).

74989951 is a wasteful number, since it uses less digits than its factorization.

74989951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7353.

The product of its digits is 816480, while the sum is 52.

The square root of 74989951 is about 8659.6738391235. The cubic root of 74989951 is about 421.6974970210.

It can be divided in two parts, 74 and 989951, that added together give a square (990025 = 995²).

The spelling of 74989951 in words is "seventy-four million, nine hundred eighty-nine thousand, nine hundred fifty-one".