74856870 has 96 divisors (see below), whose sum is σ = 215115264. Its totient is φ = 17908800.

The previous prime is 74856869. The next prime is 74856893. The reversal of 74856870 is 7865847.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81715 + ... + 82625.

It is an arithmetic number, because the mean of its divisors is an integer number (2240784).

Almost surely, 2^74856870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74856870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107557632).

74856870 is an abundant number, since it is smaller than the sum of its proper divisors (140258394).

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

74856870 is a wasteful number, since it uses less digits than its factorization.

74856870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 1015 counting only the distinct ones).

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

The square root of 74856870 is about 8651.9864771045. The cubic root of 74856870 is about 421.4478939992.

The spelling of 74856870 in words is "seventy-four million, eight hundred fifty-six thousand, eight hundred seventy".