6662939 has 16 divisors (see below), whose sum is σ = 7449600. Its totient is φ = 5930496.

The previous prime is 6662911. The next prime is 6662941. The reversal of 6662939 is 9392666.

It is a cyclic number.

It is not a de Polignac number, because 6662939 - 2¹² = 6658843 is a prime.

It is a super-2 number, since 2×6662939² = 88789512235442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6662896 and 6662905.

It is not an unprimeable number, because it can be changed into a prime (6662959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34427 + ... + 34619.

It is an arithmetic number, because the mean of its divisors is an integer number (465600).

Almost surely, 2^6662939 is an apocalyptic number.

6662939 is a deficient number, since it is larger than the sum of its proper divisors (786661).

6662939 is a wasteful number, since it uses less digits than its factorization.

6662939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314.

The product of its digits is 104976, while the sum is 41.

The square root of 6662939 is about 2581.2669369904. The cubic root of 6662939 is about 188.1721205497.

The spelling of 6662939 in words is "six million, six hundred sixty-two thousand, nine hundred thirty-nine".