72723575 has 12 divisors (see below), whose sum is σ = 90384840. Its totient is φ = 58044960.

The previous prime is 72723571. The next prime is 72723587. The reversal of 72723575 is 57532727.

It is not a de Polignac number, because 72723575 - 2² = 72723571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72723571) 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, 8561 + ... + 14789.

It is an arithmetic number, because the mean of its divisors is an integer number (7532070).

Almost surely, 2^72723575 is an apocalyptic number.

72723575 is a deficient number, since it is larger than the sum of its proper divisors (17661265).

72723575 is a wasteful number, since it uses less digits than its factorization.

72723575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6706 (or 6701 counting only the distinct ones).

The product of its digits is 102900, while the sum is 38.

The square root of 72723575 is about 8527.8118529902. The cubic root of 72723575 is about 417.4057300873.

The spelling of 72723575 in words is "seventy-two million, seven hundred twenty-three thousand, five hundred seventy-five".