772217952 has 48 divisors (see below), whose sum is σ = 2211354432. Its totient is φ = 234005120.

The previous prime is 772217917. The next prime is 772217977. The reversal of 772217952 is 259712277.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364578 + ... + 366689.

It is an arithmetic number, because the mean of its divisors is an integer number (46069884).

Almost surely, 2^772217952 is an apocalyptic number.

It is an amenable number.

772217952 is an abundant number, since it is smaller than the sum of its proper divisors (1439136480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

772217952 is a wasteful number, since it uses less digits than its factorization.

772217952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731291 (or 731283 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 772217952 is about 27788.8098341761. The cubic root of 772217952 is about 917.4448444943. Note that the first 3 decimals are identical.

The spelling of 772217952 in words is "seven hundred seventy-two million, two hundred seventeen thousand, nine hundred fifty-two".