36578772 has 36 divisors (see below), whose sum is σ = 93984436. Its totient is φ = 11992320.

The previous prime is 36578771. The next prime is 36578777. The reversal of 36578772 is 27787563.

36578772 is a `hidden beast` number, since 3 + 6 + 578 + 7 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20466576 + 16112196 = 4524^2 + 4014^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×36578772² = 2676013122055968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36578771) 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, 6133 + ... + 10524.

Almost surely, 2^36578772 is an apocalyptic number.

It is an amenable number.

36578772 is an abundant number, since it is smaller than the sum of its proper divisors (57405664).

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

36578772 is a wasteful number, since it uses less digits than its factorization.

36578772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16728 (or 16723 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 36578772 is about 6048.0386903524. The cubic root of 36578772 is about 331.9528287363.

The spelling of 36578772 in words is "thirty-six million, five hundred seventy-eight thousand, seven hundred seventy-two".