74678805 has 24 divisors (see below), whose sum is σ = 129648480. Its totient is φ = 39765600.

The previous prime is 74678801. The next prime is 74678819. The reversal of 74678805 is 50887647.

It is not a de Polignac number, because 74678805 - 2² = 74678801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74678801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46506 + ... + 48084.

It is an arithmetic number, because the mean of its divisors is an integer number (5402020).

Almost surely, 2^74678805 is an apocalyptic number.

It is an amenable number.

74678805 is a deficient number, since it is larger than the sum of its proper divisors (54969675).

74678805 is a wasteful number, since it uses less digits than its factorization.

74678805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641 (or 2638 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 74678805 is about 8641.6899388951. The cubic root of 74678805 is about 421.1134570830.

The spelling of 74678805 in words is "seventy-four million, six hundred seventy-eight thousand, eight hundred five".