72208766 has 16 divisors (see below), whose sum is σ = 123931104. Its totient is φ = 30910464.

The previous prime is 72208757. The next prime is 72208769. The reversal of 72208766 is 66780227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72208769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11966 + ... + 16958.

It is an arithmetic number, because the mean of its divisors is an integer number (7745694).

Almost surely, 2^72208766 is an apocalyptic number.

72208766 is a deficient number, since it is larger than the sum of its proper divisors (51722338).

72208766 is a wasteful number, since it uses less digits than its factorization.

72208766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6035.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 72208766 is about 8497.5741244193. The cubic root of 72208766 is about 416.4184606722.

The spelling of 72208766 in words is "seventy-two million, two hundred eight thousand, seven hundred sixty-six".