72703353 has 4 divisors (see below), whose sum is σ = 96937808. Its totient is φ = 48468900.

The previous prime is 72703349. The next prime is 72703357. The reversal of 72703353 is 35330727.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (72703349) and next prime (72703357).

It is not a de Polignac number, because 72703353 - 2² = 72703349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72703353.

It is not an unprimeable number, because it can be changed into a prime (72703357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12117223 + ... + 12117228.

It is an arithmetic number, because the mean of its divisors is an integer number (24234452).

Almost surely, 2^72703353 is an apocalyptic number.

It is an amenable number.

72703353 is a deficient number, since it is larger than the sum of its proper divisors (24234455).

72703353 is a wasteful number, since it uses less digits than its factorization.

72703353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24234454.

The product of its (nonzero) digits is 13230, while the sum is 30.

The square root of 72703353 is about 8526.6261205708. The cubic root of 72703353 is about 417.3670376314.

The spelling of 72703353 in words is "seventy-two million, seven hundred three thousand, three hundred fifty-three".