770723225 has 12 divisors (see below), whose sum is σ = 959805756. Its totient is φ = 613927680.

The previous prime is 770723221. The next prime is 770723231. The reversal of 770723225 is 522327077.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 144672784 + 626050441 = 12028^2 + 25021^2 .

It is not a de Polignac number, because 770723225 - 2² = 770723221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770723221) 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, 60332 + ... + 71981.

It is an arithmetic number, because the mean of its divisors is an integer number (79983813).

Almost surely, 2^770723225 is an apocalyptic number.

It is an amenable number.

770723225 is a deficient number, since it is larger than the sum of its proper divisors (189082531).

770723225 is a wasteful number, since it uses less digits than its factorization.

770723225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132556 (or 132551 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 35.

The square root of 770723225 is about 27761.9024023931. The cubic root of 770723225 is about 916.8525180559.

The spelling of 770723225 in words is "seven hundred seventy million, seven hundred twenty-three thousand, two hundred twenty-five".