772506172 has 6 divisors (see below), whose sum is σ = 1351885808. Its totient is φ = 386253084.

The previous prime is 772506169. The next prime is 772506173. The reversal of 772506172 is 271605277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772506173) 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 as a sum of consecutive naturals, namely, 96563268 + ... + 96563275.

Almost surely, 2^772506172 is an apocalyptic number.

It is an amenable number.

772506172 is a deficient number, since it is larger than the sum of its proper divisors (579379636).

772506172 is a wasteful number, since it uses less digits than its factorization.

772506172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193126547 (or 193126545 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 772506172 is about 27793.9952507731. The cubic root of 772506172 is about 917.5589716270.

It can be divided in two parts, 772 and 506172, that added together give a square (506944 = 712²).

The spelling of 772506172 in words is "seven hundred seventy-two million, five hundred six thousand, one hundred seventy-two".