20760679 has 4 divisors (see below), whose sum is σ = 21101080. Its totient is φ = 20420280.

The previous prime is 20760671. The next prime is 20760703. The reversal of 20760679 is 97606702.

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 20760679 - 2³ = 20760671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20760671) 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 3 ways as a sum of consecutive naturals, for example, 170109 + ... + 170230.

It is an arithmetic number, because the mean of its divisors is an integer number (5275270).

Almost surely, 2^20760679 is an apocalyptic number.

20760679 is a deficient number, since it is larger than the sum of its proper divisors (340401).

20760679 is an equidigital number, since it uses as much as digits as its factorization.

20760679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340400.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 20760679 is about 4556.3888113286. The cubic root of 20760679 is about 274.8403657543.

The spelling of 20760679 in words is "twenty million, seven hundred sixty thousand, six hundred seventy-nine".