72814655 has 16 divisors (see below), whose sum is σ = 93641184. Its totient is φ = 54159360.

The previous prime is 72814649. The next prime is 72814667. The reversal of 72814655 is 55641827.

It is not a de Polignac number, because 72814655 - 2⁶ = 72814591 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1895 + ... + 12215.

It is an arithmetic number, because the mean of its divisors is an integer number (5852574).

Almost surely, 2^72814655 is an apocalyptic number.

72814655 is a deficient number, since it is larger than the sum of its proper divisors (20826529).

72814655 is a wasteful number, since it uses less digits than its factorization.

72814655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10426.

The product of its digits is 67200, while the sum is 38.

The square root of 72814655 is about 8533.1503561112. The cubic root of 72814655 is about 417.5799122733.

The spelling of 72814655 in words is "seventy-two million, eight hundred fourteen thousand, six hundred fifty-five".