72946570 has 16 divisors (see below), whose sum is σ = 137013120. Its totient is φ = 27909904.

The previous prime is 72946561. The next prime is 72946579. The reversal of 72946570 is 7564927.

It is an interprime number because it is at equal distance from previous prime (72946561) and next prime (72946579).

It is not an unprimeable number, because it can be changed into a prime (72946579) 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, 158350 + ... + 158809.

It is an arithmetic number, because the mean of its divisors is an integer number (8563320).

Almost surely, 2^72946570 is an apocalyptic number.

72946570 is a deficient number, since it is larger than the sum of its proper divisors (64066550).

72946570 is a wasteful number, since it uses less digits than its factorization.

72946570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317189.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 72946570 is about 8540.8764187289. The cubic root of 72946570 is about 417.8319303253.

The spelling of 72946570 in words is "seventy-two million, nine hundred forty-six thousand, five hundred seventy".