3658979 has 4 divisors (see below), whose sum is σ = 3709176. Its totient is φ = 3608784.

The previous prime is 3658943. The next prime is 3658981. The reversal of 3658979 is 9798563.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3658979 - 2¹² = 3654883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3651979) 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, 24989 + ... + 25134.

It is an arithmetic number, because the mean of its divisors is an integer number (927294).

Almost surely, 2^3658979 is an apocalyptic number.

3658979 is a deficient number, since it is larger than the sum of its proper divisors (50197).

3658979 is an equidigital number, since it uses as much as digits as its factorization.

3658979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50196.

The product of its digits is 408240, while the sum is 47.

The square root of 3658979 is about 1912.8457857339. The cubic root of 3658979 is about 154.0943229442.

The spelling of 3658979 in words is "three million, six hundred fifty-eight thousand, nine hundred seventy-nine".