772113213 has 6 divisors (see below), whose sum is σ = 1115274654. Its totient is φ = 514742136.

The previous prime is 772113211. The next prime is 772113217. The reversal of 772113213 is 312311277.

It can be written as a sum of positive squares in only one way, i.e., 645820569 + 126292644 = 25413^2 + 11238^2 .

It is not a de Polignac number, because 772113213 - 2¹ = 772113211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772113211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42895170 + ... + 42895187.

It is an arithmetic number, because the mean of its divisors is an integer number (185879109).

Almost surely, 2^772113213 is an apocalyptic number.

It is an amenable number.

772113213 is a deficient number, since it is larger than the sum of its proper divisors (343161441).

772113213 is a wasteful number, since it uses less digits than its factorization.

772113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85790363 (or 85790360 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 772113213 is about 27786.9252167274. The cubic root of 772113213 is about 917.4033637180.

The spelling of 772113213 in words is "seven hundred seventy-two million, one hundred thirteen thousand, two hundred thirteen".