72583706 has 8 divisors (see below), whose sum is σ = 117250644. Its totient is φ = 33500160.

The previous prime is 72583669. The next prime is 72583733. The reversal of 72583706 is 60738527.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 72403081 + 180625 = 8509^2 + 425^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 72583706.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1395815 + ... + 1395866.

Almost surely, 2^72583706 is an apocalyptic number.

72583706 is a deficient number, since it is larger than the sum of its proper divisors (44666938).

72583706 is a wasteful number, since it uses less digits than its factorization.

72583706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791696.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 72583706 is about 8519.6071505674. The cubic root of 72583706 is about 417.1379600150.

The spelling of 72583706 in words is "seventy-two million, five hundred eighty-three thousand, seven hundred six".