72796590 has 32 divisors (see below), whose sum is σ = 194124960. Its totient is φ = 19412352.

The previous prime is 72796573. The next prime is 72796597. The reversal of 72796590 is 9569727.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72796597) 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, 134539 + ... + 135078.

It is an arithmetic number, because the mean of its divisors is an integer number (6066405).

Almost surely, 2^72796590 is an apocalyptic number.

72796590 is an abundant number, since it is smaller than the sum of its proper divisors (121328370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72796590 is a wasteful number, since it uses less digits than its factorization.

72796590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269633 (or 269627 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 72796590 is about 8532.0917716583. The cubic root of 72796590 is about 417.5453761622.

The spelling of 72796590 in words is "seventy-two million, seven hundred ninety-six thousand, five hundred ninety".