72203373 has 16 divisors (see below), whose sum is σ = 116692800. Its totient is φ = 43759440.

The previous prime is 72203357. The next prime is 72203377. The reversal of 72203373 is 37330227.

It is a happy number.

It is not a de Polignac number, because 72203373 - 2⁴ = 72203357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72203377) 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, 121258 + ... + 121851.

It is an arithmetic number, because the mean of its divisors is an integer number (7293300).

Almost surely, 2^72203373 is an apocalyptic number.

It is an amenable number.

72203373 is a deficient number, since it is larger than the sum of its proper divisors (44489427).

72203373 is a wasteful number, since it uses less digits than its factorization.

72203373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243129 (or 243123 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 27.

The square root of 72203373 is about 8497.2567926361. The cubic root of 72203373 is about 416.4080935068.

The spelling of 72203373 in words is "seventy-two million, two hundred three thousand, three hundred seventy-three".