72770410 has 16 divisors (see below), whose sum is σ = 131173416. Its totient is φ = 29066688.

The previous prime is 72770407. The next prime is 72770447. The reversal of 72770410 is 1407727.

It can be written as a sum of positive squares in 4 ways, for example, as 72641529 + 128881 = 8523^2 + 359^2 .

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, 2764 + ... + 12376.

Almost surely, 2^72770410 is an apocalyptic number.

72770410 is a deficient number, since it is larger than the sum of its proper divisors (58403006).

72770410 is a wasteful number, since it uses less digits than its factorization.

72770410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10377.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 72770410 is about 8530.5574261006. The cubic root of 72770410 is about 417.4953159024.

The spelling of 72770410 in words is "seventy-two million, seven hundred seventy thousand, four hundred ten".