72839370 has 32 divisors (see below), whose sum is σ = 179081280. Its totient is φ = 18949760.

The previous prime is 72839357. The next prime is 72839399. The reversal of 72839370 is 7393827.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28380 + ... + 30839.

It is an arithmetic number, because the mean of its divisors is an integer number (5596290).

Almost surely, 2^72839370 is an apocalyptic number.

72839370 is an abundant number, since it is smaller than the sum of its proper divisors (106241910).

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

72839370 is a wasteful number, since it uses less digits than its factorization.

72839370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59270.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 72839370 is about 8534.5984088298. The cubic root of 72839370 is about 417.6271523977.

It can be divided in two parts, 7283 and 9370, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 72839370 in words is "seventy-two million, eight hundred thirty-nine thousand, three hundred seventy".