72654723 has 12 divisors (see below), whose sum is σ = 109508880. Its totient is φ = 46330416.

The previous prime is 72654709. The next prime is 72654763. The reversal of 72654723 is 32745627.

It is a happy number.

It is not a de Polignac number, because 72654723 - 2⁵ = 72654691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72654763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175288 + ... + 175701.

It is an arithmetic number, because the mean of its divisors is an integer number (9125740).

Almost surely, 2^72654723 is an apocalyptic number.

72654723 is a deficient number, since it is larger than the sum of its proper divisors (36854157).

72654723 is a wasteful number, since it uses less digits than its factorization.

72654723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351018 (or 351015 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 72654723 is about 8523.7739880877. The cubic root of 72654723 is about 417.2739603742.

The spelling of 72654723 in words is "seventy-two million, six hundred fifty-four thousand, seven hundred twenty-three".