20000679 has 8 divisors (see below), whose sum is σ = 26714352. Its totient is φ = 13310400.

The previous prime is 20000671. The next prime is 20000689. The reversal of 20000679 is 97600002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20000679 - 2³ = 20000671 is a prime.

It is a super-2 number, since 2×20000679² = 800054320922082, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3744 + ... + 7349.

It is an arithmetic number, because the mean of its divisors is an integer number (3339294).

Almost surely, 2^20000679 is an apocalyptic number.

20000679 is a deficient number, since it is larger than the sum of its proper divisors (6713673).

20000679 is a wasteful number, since it uses less digits than its factorization.

20000679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11697.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 20000679 is about 4472.2118688631. The cubic root of 20000679 is about 271.4448334407. Note that the first 3 decimals are identical.

The spelling of 20000679 in words is "twenty million, six hundred seventy-nine", and thus it is an aban number.