772216252 has 6 divisors (see below), whose sum is σ = 1351378448. Its totient is φ = 386108124.

The previous prime is 772216241. The next prime is 772216253. The reversal of 772216252 is 252612277.

It is a happy number.

772216252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772216253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96527028 + ... + 96527035.

Almost surely, 2^772216252 is an apocalyptic number.

It is an amenable number.

772216252 is a deficient number, since it is larger than the sum of its proper divisors (579162196).

772216252 is a wasteful number, since it uses less digits than its factorization.

772216252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193054067 (or 193054065 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 772216252 is about 27788.7792463073. The cubic root of 772216252 is about 917.4441712572. Note that the first 3 decimals are identical.

The spelling of 772216252 in words is "seven hundred seventy-two million, two hundred sixteen thousand, two hundred fifty-two".