74855775 has 12 divisors (see below), whose sum is σ = 123761672. Its totient is φ = 39923040.

The previous prime is 74855761. The next prime is 74855779. The reversal of 74855775 is 57755847.

It is a happy number.

It is not a de Polignac number, because 74855775 - 2⁸ = 74855519 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74855779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 498964 + ... + 499113.

Almost surely, 2^74855775 is an apocalyptic number.

74855775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

74855775 is a deficient number, since it is larger than the sum of its proper divisors (48905897).

74855775 is a wasteful number, since it uses less digits than its factorization.

74855775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998090 (or 998085 counting only the distinct ones).

The product of its digits is 1372000, while the sum is 48.

The square root of 74855775 is about 8651.9231966078. The cubic root of 74855775 is about 421.4458390211.

The spelling of 74855775 in words is "seventy-four million, eight hundred fifty-five thousand, seven hundred seventy-five".