536666772 has 12 divisors (see below), whose sum is σ = 1252222496. Its totient is φ = 178888920.

The previous prime is 536666749. The next prime is 536666791. The reversal of 536666772 is 277666635.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×536666772² = 576022448337799968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22361104 + ... + 22361127.

Almost surely, 2^536666772 is an apocalyptic number.

It is an amenable number.

536666772 is an abundant number, since it is smaller than the sum of its proper divisors (715555724).

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

536666772 is a wasteful number, since it uses less digits than its factorization.

536666772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44722238 (or 44722236 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 48.

The square root of 536666772 is about 23166.0694119654. The cubic root of 536666772 is about 812.6463121757.

The spelling of 536666772 in words is "five hundred thirty-six million, six hundred sixty-six thousand, seven hundred seventy-two".