3658959 has 16 divisors (see below), whose sum is σ = 5608800. Its totient is φ = 2354688.

The previous prime is 3658943. The next prime is 3658981. The reversal of 3658959 is 9598563.

It is not a de Polignac number, because 3658959 - 2⁴ = 3658943 is a prime.

3658959 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3658159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554 + ... + 3119.

It is an arithmetic number, because the mean of its divisors is an integer number (350550).

Almost surely, 2^3658959 is an apocalyptic number.

3658959 is a deficient number, since it is larger than the sum of its proper divisors (1949841).

3658959 is a wasteful number, since it uses less digits than its factorization.

3658959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711 (or 4705 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 3658959 is about 1912.8405579138. The cubic root of 3658959 is about 154.0940421835.

The spelling of 3658959 in words is "three million, six hundred fifty-eight thousand, nine hundred fifty-nine".