74638377 has 24 divisors (see below), whose sum is σ = 118074528. Its totient is φ = 45057600.

The previous prime is 74638357. The next prime is 74638379. The reversal of 74638377 is 77383647.

74638377 is a `hidden beast` number, since 7 + 4 + 638 + 3 + 7 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-74638377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74638379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26478 + ... + 29160.

It is an arithmetic number, because the mean of its divisors is an integer number (4919772).

Almost surely, 2^74638377 is an apocalyptic number.

It is an amenable number.

74638377 is a deficient number, since it is larger than the sum of its proper divisors (43436151).

74638377 is a wasteful number, since it uses less digits than its factorization.

74638377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981 (or 2978 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The square root of 74638377 is about 8639.3504964204. The cubic root of 74638377 is about 421.0374522606.

The spelling of 74638377 in words is "seventy-four million, six hundred thirty-eight thousand, three hundred seventy-seven".