72373653 has 12 divisors (see below), whose sum is σ = 114043488. Its totient is φ = 43862760.

The previous prime is 72373619. The next prime is 72373669. The reversal of 72373653 is 35637327.

It is a happy number.

It is not a de Polignac number, because 72373653 - 2⁸ = 72373397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72373153) 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, 365425 + ... + 365622.

It is an arithmetic number, because the mean of its divisors is an integer number (9503624).

Almost surely, 2^72373653 is an apocalyptic number.

It is an amenable number.

72373653 is a deficient number, since it is larger than the sum of its proper divisors (41669835).

72373653 is a wasteful number, since it uses less digits than its factorization.

72373653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731064 (or 731061 counting only the distinct ones).

The product of its digits is 79380, while the sum is 36.

The square root of 72373653 is about 8507.2705963781. The cubic root of 72373653 is about 416.7351802713.

The spelling of 72373653 in words is "seventy-two million, three hundred seventy-three thousand, six hundred fifty-three".