71750664 has 32 divisors (see below), whose sum is σ = 199308000. Its totient is φ = 23916816.

The previous prime is 71750663. The next prime is 71750671. The reversal of 71750664 is 46605717.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (71750663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165874 + ... + 166305.

It is an arithmetic number, because the mean of its divisors is an integer number (6228375).

Almost surely, 2^71750664 is an apocalyptic number.

It is an amenable number.

71750664 is an abundant number, since it is smaller than the sum of its proper divisors (127557336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71750664 is a wasteful number, since it uses less digits than its factorization.

71750664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332194 (or 332184 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 71750664 is about 8470.5763676387. The cubic root of 71750664 is about 415.5359871865.

The spelling of 71750664 in words is "seventy-one million, seven hundred fifty thousand, six hundred sixty-four".