3639701 has 4 divisors (see below), whose sum is σ = 3919692. Its totient is φ = 3359712.

The previous prime is 3639689. The next prime is 3639719. The reversal of 3639701 is 1079363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1079363 = 197 ⋅5479.

It can be written as a sum of positive squares in 2 ways, for example, as 1311025 + 2328676 = 1145^2 + 1526^2 .

It is a cyclic number.

It is not a de Polignac number, because 3639701 - 2⁶ = 3639637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3639781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139976 + ... + 140001.

It is an arithmetic number, because the mean of its divisors is an integer number (979923).

Almost surely, 2^3639701 is an apocalyptic number.

It is an amenable number.

3639701 is a deficient number, since it is larger than the sum of its proper divisors (279991).

3639701 is a wasteful number, since it uses less digits than its factorization.

3639701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279990.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 3639701 is about 1907.8000419331. The cubic root of 3639701 is about 153.8232215627.

The spelling of 3639701 in words is "three million, six hundred thirty-nine thousand, seven hundred one".