72651873 has 16 divisors (see below), whose sum is σ = 114526080. Its totient is φ = 40083456.

The previous prime is 72651851. The next prime is 72651883. The reversal of 72651873 is 37815627.

It is not a de Polignac number, because 72651873 - 2⁵ = 72651841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72651883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59040 + ... + 60257.

It is an arithmetic number, because the mean of its divisors is an integer number (7157880).

Almost surely, 2^72651873 is an apocalyptic number.

It is an amenable number.

72651873 is a deficient number, since it is larger than the sum of its proper divisors (41874207).

72651873 is a wasteful number, since it uses less digits than its factorization.

72651873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119336.

The product of its digits is 70560, while the sum is 39.

The square root of 72651873 is about 8523.6068069802. The cubic root of 72651873 is about 417.2685042190.

The spelling of 72651873 in words is "seventy-two million, six hundred fifty-one thousand, eight hundred seventy-three".