72408785 has 16 divisors (see below), whose sum is σ = 88603200. Its totient is φ = 56796480.

The previous prime is 72408781. The next prime is 72408799. The reversal of 72408785 is 58780427.

It is not a de Polignac number, because 72408785 - 2² = 72408781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72408781) 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 15 ways as a sum of consecutive naturals, for example, 61250 + ... + 62420.

It is an arithmetic number, because the mean of its divisors is an integer number (5537700).

Almost surely, 2^72408785 is an apocalyptic number.

It is an amenable number.

72408785 is a deficient number, since it is larger than the sum of its proper divisors (16194415).

72408785 is a wasteful number, since it uses less digits than its factorization.

72408785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 72408785 is about 8509.3351679200. The cubic root of 72408785 is about 416.8026006257.

The spelling of 72408785 in words is "seventy-two million, four hundred eight thousand, seven hundred eighty-five".