72697941 has 12 divisors (see below), whose sum is σ = 105207232. Its totient is φ = 48373416.

The previous prime is 72697931. The next prime is 72697979. The reversal of 72697941 is 14979627.

It is not a de Polignac number, because 72697941 - 2¹⁰ = 72696917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72697921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2461 + ... + 12306.

Almost surely, 2^72697941 is an apocalyptic number.

72697941 is the 4923-rd octagonal number.

It is an amenable number.

72697941 is a deficient number, since it is larger than the sum of its proper divisors (32509291).

72697941 is a wasteful number, since it uses less digits than its factorization.

72697941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15320 (or 15317 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 72697941 is about 8526.3087558451. The cubic root of 72697941 is about 417.3566811789.

The spelling of 72697941 in words is "seventy-two million, six hundred ninety-seven thousand, nine hundred forty-one".