72998703 has 12 divisors (see below), whose sum is σ = 110992440. Its totient is φ = 46104336.

The previous prime is 72998699. The next prime is 72998719. The reversal of 72998703 is 30789927.

It is not a de Polignac number, because 72998703 - 2² = 72998699 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72998603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213276 + ... + 213617.

It is an arithmetic number, because the mean of its divisors is an integer number (9249370).

Almost surely, 2^72998703 is an apocalyptic number.

72998703 is a deficient number, since it is larger than the sum of its proper divisors (37993737).

72998703 is a wasteful number, since it uses less digits than its factorization.

72998703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426918 (or 426915 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 72998703 is about 8543.9278437964. The cubic root of 72998703 is about 417.9314444623.

The spelling of 72998703 in words is "seventy-two million, nine hundred ninety-eight thousand, seven hundred three".