772340725 has 12 divisors (see below), whose sum is σ = 1031372356. Its totient is φ = 570343680.

The previous prime is 772340687. The next prime is 772340729. The reversal of 772340725 is 527043277.

It can be written as a sum of positive squares in 6 ways, for example, as 26286129 + 746054596 = 5127^2 + 27314^2 .

It is not a de Polignac number, because 772340725 - 2¹⁵ = 772307957 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772340729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1187892 + ... + 1188541.

Almost surely, 2^772340725 is an apocalyptic number.

It is an amenable number.

772340725 is a deficient number, since it is larger than the sum of its proper divisors (259031631).

772340725 is a wasteful number, since it uses less digits than its factorization.

772340725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376456 (or 2376451 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 772340725 is about 27791.0187830529. The cubic root of 772340725 is about 917.4934626712.

The spelling of 772340725 in words is "seven hundred seventy-two million, three hundred forty thousand, seven hundred twenty-five".