72869313 has 64 divisors (see below), whose sum is σ = 120913920. Its totient is φ = 38491200.

The previous prime is 72869311. The next prime is 72869347. The reversal of 72869313 is 31396827.

It is not a de Polignac number, because 72869313 - 2¹ = 72869311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72869311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 446970 + ... + 447132.

It is an arithmetic number, because the mean of its divisors is an integer number (1889280).

Almost surely, 2^72869313 is an apocalyptic number.

It is an amenable number.

72869313 is a deficient number, since it is larger than the sum of its proper divisors (48044607).

72869313 is a wasteful number, since it uses less digits than its factorization.

72869313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its digits is 54432, while the sum is 39.

The square root of 72869313 is about 8536.3524411777. The cubic root of 72869313 is about 417.6843709810.

The spelling of 72869313 in words is "seventy-two million, eight hundred sixty-nine thousand, three hundred thirteen".