74676784 has 120 divisors (see below), whose sum is σ = 192362688. Its totient is φ = 27740160.

The previous prime is 74676781. The next prime is 74676787. The reversal of 74676784 is 48767647.

It is an interprime number because it is at equal distance from previous prime (74676781) and next prime (74676787).

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (74676781) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 173049 + ... + 173479.

Almost surely, 2^74676784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74676784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96181344).

74676784 is an abundant number, since it is smaller than the sum of its proper divisors (117685904).

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

74676784 is a wasteful number, since it uses less digits than its factorization.

74676784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 470 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 49.

The square root of 74676784 is about 8641.5730049569. The cubic root of 74676784 is about 421.1096582454.

The spelling of 74676784 in words is "seventy-four million, six hundred seventy-six thousand, seven hundred eighty-four".