74465865 has 64 divisors (see below), whose sum is σ = 142456320. Its totient is φ = 36771840.

The previous prime is 74465861. The next prime is 74465869. The reversal of 74465865 is 56856447.

It is an interprime number because it is at equal distance from previous prime (74465861) and next prime (74465869).

It is not a de Polignac number, because 74465865 - 2² = 74465861 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 74465865.

It is not an unprimeable number, because it can be changed into a prime (74465861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 162717 + ... + 163173.

It is an arithmetic number, because the mean of its divisors is an integer number (2225880).

Almost surely, 2^74465865 is an apocalyptic number.

It is an amenable number.

74465865 is a deficient number, since it is larger than the sum of its proper divisors (67990455).

74465865 is a wasteful number, since it uses less digits than its factorization.

74465865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 553 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 74465865 is about 8629.3606368027. The cubic root of 74465865 is about 420.7128201361.

The spelling of 74465865 in words is "seventy-four million, four hundred sixty-five thousand, eight hundred sixty-five".