72739683 has 12 divisors (see below), whose sum is σ = 105142960. Its totient is φ = 48458736.

The previous prime is 72739661. The next prime is 72739687. The reversal of 72739683 is 38693727.

It is a happy number.

It is not a de Polignac number, because 72739683 - 2¹⁷ = 72608611 is a prime.

It is a super-2 number, since 2×72739683² = 10582122965880978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72739687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20913 + ... + 24141.

Almost surely, 2^72739683 is an apocalyptic number.

72739683 is a deficient number, since it is larger than the sum of its proper divisors (32403277).

72739683 is a wasteful number, since it uses less digits than its factorization.

72739683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5738 (or 5735 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 72739683 is about 8528.7562399215. The cubic root of 72739683 is about 417.4365457485.

The spelling of 72739683 in words is "seventy-two million, seven hundred thirty-nine thousand, six hundred eighty-three".