36566649 has 24 divisors (see below), whose sum is σ = 61198592. Its totient is φ = 20606400.

The previous prime is 36566627. The next prime is 36566653. The reversal of 36566649 is 94666563.

It is not a de Polignac number, because 36566649 - 2⁷ = 36566521 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (36566669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 624 + ... + 8574.

Almost surely, 2^36566649 is an apocalyptic number.

It is an amenable number.

36566649 is a deficient number, since it is larger than the sum of its proper divisors (24631943).

36566649 is a wasteful number, since it uses less digits than its factorization.

36566649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8037 (or 8034 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 36566649 is about 6047.0363815674. The cubic root of 36566649 is about 331.9161525570.

The spelling of 36566649 in words is "thirty-six million, five hundred sixty-six thousand, six hundred forty-nine".