72641692 has 6 divisors (see below), whose sum is σ = 127122968. Its totient is φ = 36320844.

The previous prime is 72641687. The next prime is 72641707. The reversal of 72641692 is 29614627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9080208 + ... + 9080215.

Almost surely, 2^72641692 is an apocalyptic number.

It is an amenable number.

72641692 is a deficient number, since it is larger than the sum of its proper divisors (54481276).

72641692 is a wasteful number, since it uses less digits than its factorization.

72641692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18160427 (or 18160425 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 72641692 is about 8523.0095623553. The cubic root of 72641692 is about 417.2490121356.

The spelling of 72641692 in words is "seventy-two million, six hundred forty-one thousand, six hundred ninety-two".