36641772 has 18 divisors (see below), whose sum is σ = 92622348. Its totient is φ = 12213912.

The previous prime is 36641771. The next prime is 36641777. The reversal of 36641772 is 27714663.

36641772 is a `hidden beast` number, since 3 + 6 + 641 + 7 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1017827 = 36641772 / (3 + 6 + 6 + 4 + 1 + 7 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (36641771) 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, 508878 + ... + 508949.

It is an arithmetic number, because the mean of its divisors is an integer number (5145686).

Almost surely, 2^36641772 is an apocalyptic number.

It is an amenable number.

36641772 is an abundant number, since it is smaller than the sum of its proper divisors (55980576).

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

36641772 is a wasteful number, since it uses less digits than its factorization.

36641772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017837 (or 1017832 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 36641772 is about 6053.2447497189. The cubic root of 36641772 is about 332.1432947024.

The spelling of 36641772 in words is "thirty-six million, six hundred forty-one thousand, seven hundred seventy-two".