74472915 has 32 divisors (see below), whose sum is σ = 130378752. Its totient is φ = 36000000.

The previous prime is 74472911. The next prime is 74472917. The reversal of 74472915 is 51927447.

It is not a de Polignac number, because 74472915 - 2² = 74472911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74472911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98790 + ... + 99540.

It is an arithmetic number, because the mean of its divisors is an integer number (4074336).

Almost surely, 2^74472915 is an apocalyptic number.

74472915 is a deficient number, since it is larger than the sum of its proper divisors (55905837).

74472915 is a wasteful number, since it uses less digits than its factorization.

74472915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its digits is 70560, while the sum is 39.

The square root of 74472915 is about 8629.7691162626. The cubic root of 74472915 is about 420.7260966075.

The spelling of 74472915 in words is "seventy-four million, four hundred seventy-two thousand, nine hundred fifteen".