36649649 has 12 divisors (see below), whose sum is σ = 39650100. Its totient is φ = 33833184.

The previous prime is 36649643. The next prime is 36649661. The reversal of 36649649 is 94694663.

It can be written as a sum of positive squares in 2 ways, for example, as 13542400 + 23107249 = 3680^2 + 4807^2 .

It is not a de Polignac number, because 36649649 - 2⁴ = 36649633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36649643) 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, 14147 + ... + 16535.

It is an arithmetic number, because the mean of its divisors is an integer number (3304175).

Almost surely, 2^36649649 is an apocalyptic number.

It is an amenable number.

36649649 is a deficient number, since it is larger than the sum of its proper divisors (3000451).

36649649 is a wasteful number, since it uses less digits than its factorization.

36649649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464 (or 2441 counting only the distinct ones).

The product of its digits is 839808, while the sum is 47.

The square root of 36649649 is about 6053.8953575363. The cubic root of 36649649 is about 332.1670936358.

The spelling of 36649649 in words is "thirty-six million, six hundred forty-nine thousand, six hundred forty-nine".