3668979 has 4 divisors (see below), whose sum is σ = 4891976. Its totient is φ = 2445984.

The previous prime is 3668971. The next prime is 3668981. The reversal of 3668979 is 9798663.

It is a happy number.

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

It is not a de Polignac number, because 3668979 - 2³ = 3668971 is a prime.

It is a super-2 number, since 2×3668979² = 26922813804882, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3668971) 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, 611494 + ... + 611499.

It is an arithmetic number, because the mean of its divisors is an integer number (1222994).

Almost surely, 2^3668979 is an apocalyptic number.

3668979 is a deficient number, since it is larger than the sum of its proper divisors (1222997).

3668979 is a wasteful number, since it uses less digits than its factorization.

3668979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222996.

The product of its digits is 489888, while the sum is 48.

The square root of 3668979 is about 1915.4579086996. The cubic root of 3668979 is about 154.2345753257.

The spelling of 3668979 in words is "three million, six hundred sixty-eight thousand, nine hundred seventy-nine".