6679407 has 16 divisors (see below), whose sum is σ = 10621440. Its totient is φ = 3650592.

The previous prime is 6679397. The next prime is 6679423. The reversal of 6679407 is 7049766.

It is not a de Polignac number, because 6679407 - 2⁴ = 6679391 is a prime.

It is a super-2 number, since 2×6679407² = 89228955743298, which contains 22 as substring.

It is an Ulam number.

6679407 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6679307) 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, 6432 + ... + 7397.

It is an arithmetic number, because the mean of its divisors is an integer number (663840).

Almost surely, 2^6679407 is an apocalyptic number.

6679407 is a deficient number, since it is larger than the sum of its proper divisors (3942033).

6679407 is a wasteful number, since it uses less digits than its factorization.

6679407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13862.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 6679407 is about 2584.4548748237. The cubic root of 6679407 is about 188.3270206114.

The spelling of 6679407 in words is "six million, six hundred seventy-nine thousand, four hundred seven".