772671572 has 12 divisors (see below), whose sum is σ = 1355584020. Its totient is φ = 385361856.

The previous prime is 772671553. The next prime is 772671589. The reversal of 772671572 is 275176277.

It can be written as a sum of positive squares in 2 ways, for example, as 613255696 + 159415876 = 24764^2 + 12626^2 .

It is a congruent number.

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, 241697 + ... + 244872.

It is an arithmetic number, because the mean of its divisors is an integer number (112965335).

Almost surely, 2^772671572 is an apocalyptic number.

It is an amenable number.

772671572 is a deficient number, since it is larger than the sum of its proper divisors (582912448).

772671572 is a wasteful number, since it uses less digits than its factorization.

772671572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486970 (or 486968 counting only the distinct ones).

The product of its digits is 288120, while the sum is 44.

The square root of 772671572 is about 27796.9705543608. The cubic root of 772671572 is about 917.6244526244.

The spelling of 772671572 in words is "seven hundred seventy-two million, six hundred seventy-one thousand, five hundred seventy-two".