74345715 has 32 divisors (see below), whose sum is σ = 133862400. Its totient is φ = 39143520.

The previous prime is 74345707. The next prime is 74345717. The reversal of 74345715 is 51754347.

It is a happy number.

It is not a de Polignac number, because 74345715 - 2³ = 74345707 is a prime.

It is a super-2 number, since 2×74345715² = 11054570677722450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74345715.

It is not an unprimeable number, because it can be changed into a prime (74345717) 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, 7180 + ... + 14150.

It is an arithmetic number, because the mean of its divisors is an integer number (4183200).

Almost surely, 2^74345715 is an apocalyptic number.

74345715 is a deficient number, since it is larger than the sum of its proper divisors (59516685).

74345715 is a wasteful number, since it uses less digits than its factorization.

74345715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7064 (or 7058 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 74345715 is about 8622.3961286872. The cubic root of 74345715 is about 420.4864262202.

The spelling of 74345715 in words is "seventy-four million, three hundred forty-five thousand, seven hundred fifteen".