72160839 has 24 divisors (see below), whose sum is σ = 109903872. Its totient is φ = 45556560.

The previous prime is 72160831. The next prime is 72160853. The reversal of 72160839 is 93806127.

It is not a de Polignac number, because 72160839 - 2³ = 72160831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72160831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10362 + ... + 15864.

It is an arithmetic number, because the mean of its divisors is an integer number (4579328).

Almost surely, 2^72160839 is an apocalyptic number.

72160839 is a deficient number, since it is larger than the sum of its proper divisors (37743033).

72160839 is a wasteful number, since it uses less digits than its factorization.

72160839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587 (or 5584 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 72160839 is about 8494.7536162034. The cubic root of 72160839 is about 416.3263107123.

The spelling of 72160839 in words is "seventy-two million, one hundred sixty thousand, eight hundred thirty-nine".