74385716 has 12 divisors (see below), whose sum is σ = 130735332. Its totient is φ = 37032768.

The previous prime is 74385713. The next prime is 74385719. The reversal of 74385716 is 61758347.

It is an interprime number because it is at equal distance from previous prime (74385713) and next prime (74385719).

It can be written as a sum of positive squares in 2 ways, for example, as 49843600 + 24542116 = 7060^2 + 4954^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74385713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38975 + ... + 40838.

It is an arithmetic number, because the mean of its divisors is an integer number (10894611).

Almost surely, 2^74385716 is an apocalyptic number.

It is an amenable number.

74385716 is a deficient number, since it is larger than the sum of its proper divisors (56349616).

74385716 is a wasteful number, since it uses less digits than its factorization.

74385716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80050 (or 80048 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The square root of 74385716 is about 8624.7154155949. The cubic root of 74385716 is about 420.5618255975.

The spelling of 74385716 in words is "seventy-four million, three hundred eighty-five thousand, seven hundred sixteen".