14640679 has 4 divisors (see below), whose sum is σ = 15145560. Its totient is φ = 14135800.

The previous prime is 14640677. The next prime is 14640727. The reversal of 14640679 is 97604641.

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 14640679 - 2¹ = 14640677 is a prime.

It is a super-3 number, since 3×14640679³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14640677) 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, 252397 + ... + 252454.

It is an arithmetic number, because the mean of its divisors is an integer number (3786390).

Almost surely, 2^14640679 is an apocalyptic number.

14640679 is a deficient number, since it is larger than the sum of its proper divisors (504881).

14640679 is an equidigital number, since it uses as much as digits as its factorization.

14640679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504880.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 14640679 is about 3826.3140226594. The cubic root of 14640679 is about 244.6360220768.

The spelling of 14640679 in words is "fourteen million, six hundred forty thousand, six hundred seventy-nine".