72762770 has 8 divisors (see below), whose sum is σ = 130973004. Its totient is φ = 29105104.

The previous prime is 72762743. The next prime is 72762793. The reversal of 72762770 is 7726727.

It can be written as a sum of positive squares in 2 ways, for example, as 62141689 + 10621081 = 7883^2 + 3259^2 .

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

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, 3638129 + ... + 3638148.

Almost surely, 2^72762770 is an apocalyptic number.

72762770 is a deficient number, since it is larger than the sum of its proper divisors (58210234).

72762770 is a wasteful number, since it uses less digits than its factorization.

72762770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276284.

The product of its (nonzero) digits is 57624, while the sum is 38.

The square root of 72762770 is about 8530.1096124259. The cubic root of 72762770 is about 417.4807047628.

The spelling of 72762770 in words is "seventy-two million, seven hundred sixty-two thousand, seven hundred seventy".