72730662 has 16 divisors (see below), whose sum is σ = 145554240. Its totient is φ = 24228072.

The previous prime is 72730661. The next prime is 72730663. The reversal of 72730662 is 26603727.

It is an interprime number because it is at equal distance from previous prime (72730661) and next prime (72730663).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72730661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10293 + ... + 15855.

It is an arithmetic number, because the mean of its divisors is an integer number (9097140).

Almost surely, 2^72730662 is an apocalyptic number.

72730662 is an abundant number, since it is smaller than the sum of its proper divisors (72823578).

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

72730662 is a wasteful number, since it uses less digits than its factorization.

72730662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7747.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 72730662 is about 8528.2273656370. The cubic root of 72730662 is about 417.4192885440.

The spelling of 72730662 in words is "seventy-two million, seven hundred thirty thousand, six hundred sixty-two".