3664737 has 8 divisors (see below), whose sum is σ = 5429280. Its totient is φ = 2443140.

The previous prime is 3664723. The next prime is 3664747. The reversal of 3664737 is 7374663.

3664737 is a `hidden beast` number, since 3 + 6 + 647 + 3 + 7 = 666.

It is not a de Polignac number, because 3664737 - 2⁴ = 3664721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3664747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67839 + ... + 67892.

It is an arithmetic number, because the mean of its divisors is an integer number (678660).

Almost surely, 2^3664737 is an apocalyptic number.

It is an amenable number.

3664737 is a deficient number, since it is larger than the sum of its proper divisors (1764543).

3664737 is a wasteful number, since it uses less digits than its factorization.

3664737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135740 (or 135734 counting only the distinct ones).

The product of its digits is 63504, while the sum is 36.

The square root of 3664737 is about 1914.3502814271. The cubic root of 3664737 is about 154.1751114277.

The spelling of 3664737 in words is "three million, six hundred sixty-four thousand, seven hundred thirty-seven".