72102373 has 16 divisors (see below), whose sum is σ = 86809600. Its totient is φ = 59799600.

The previous prime is 72102361. The next prime is 72102383. The reversal of 72102373 is 37320127.

It is a de Polignac number, because none of the positive numbers 2^k-72102373 is a prime.

It is a super-2 number, since 2×72102373² = 10397504384462258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72102383) 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, 7243 + ... + 14023.

It is an arithmetic number, because the mean of its divisors is an integer number (5425600).

Almost surely, 2^72102373 is an apocalyptic number.

It is an amenable number.

72102373 is a deficient number, since it is larger than the sum of its proper divisors (14707227).

72102373 is an equidigital number, since it uses as much as digits as its factorization.

72102373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833 (or 6819 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 72102373 is about 8491.3116183544. The cubic root of 72102373 is about 416.2138419956.

The spelling of 72102373 in words is "seventy-two million, one hundred two thousand, three hundred seventy-three".