72577706 has 16 divisors (see below), whose sum is σ = 110459904. Its totient is φ = 35761824.

The previous prime is 72577651. The next prime is 72577717. The reversal of 72577706 is 60777527.

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 7 ways as a sum of consecutive naturals, for example, 40526 + ... + 42278.

It is an arithmetic number, because the mean of its divisors is an integer number (6903744).

Almost surely, 2^72577706 is an apocalyptic number.

72577706 is a deficient number, since it is larger than the sum of its proper divisors (37882198).

72577706 is a wasteful number, since it uses less digits than its factorization.

72577706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045.

The product of its (nonzero) digits is 144060, while the sum is 41.

The square root of 72577706 is about 8519.2550143777. The cubic root of 72577706 is about 417.1264657147.

The spelling of 72577706 in words is "seventy-two million, five hundred seventy-seven thousand, seven hundred six".