72700538 has 8 divisors (see below), whose sum is σ = 109339680. Its totient is φ = 36253980.

The previous prime is 72700531. The next prime is 72700541. The reversal of 72700538 is 83500727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72700531) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 47198 + ... + 48713.

It is an arithmetic number, because the mean of its divisors is an integer number (13667460).

Almost surely, 2^72700538 is an apocalyptic number.

72700538 is a deficient number, since it is larger than the sum of its proper divisors (36639142).

72700538 is a wasteful number, since it uses less digits than its factorization.

72700538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96292.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 72700538 is about 8526.4610478205. The cubic root of 72700538 is about 417.3616508859.

The spelling of 72700538 in words is "seventy-two million, seven hundred thousand, five hundred thirty-eight".