74693680 has 20 divisors (see below), whose sum is σ = 173662992. Its totient is φ = 29877440.

The previous prime is 74693659. The next prime is 74693701. The reversal of 74693680 is 8639647.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74693659) and next prime (74693701).

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×74693680³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466756 + ... + 466915.

Almost surely, 2^74693680 is an apocalyptic number.

It is an amenable number.

74693680 is an abundant number, since it is smaller than the sum of its proper divisors (98969312).

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

74693680 is a wasteful number, since it uses less digits than its factorization.

74693680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933684 (or 933678 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 74693680 is about 8642.5505494617. The cubic root of 74693680 is about 421.1414152470.

The spelling of 74693680 in words is "seventy-four million, six hundred ninety-three thousand, six hundred eighty".