76621424 has 20 divisors (see below), whose sum is σ = 161950200. Its totient is φ = 34827840.

The previous prime is 76621409. The next prime is 76621439. The reversal of 76621424 is 42412667.

It is an interprime number because it is at equal distance from previous prime (76621409) and next prime (76621439).

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217499 + ... + 217850.

It is an arithmetic number, because the mean of its divisors is an integer number (8097510).

Almost surely, 2^76621424 is an apocalyptic number.

It is an amenable number.

76621424 is an abundant number, since it is smaller than the sum of its proper divisors (85328776).

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

76621424 is a wasteful number, since it uses less digits than its factorization.

76621424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435368 (or 435362 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 76621424 is about 8753.3664381197. The cubic root of 76621424 is about 424.7337183185.

The spelling of 76621424 in words is "seventy-six million, six hundred twenty-one thousand, four hundred twenty-four".