20714631 has 8 divisors (see below), whose sum is σ = 31565184. Its totient is φ = 11836920.

The previous prime is 20714621. The next prime is 20714647. The reversal of 20714631 is 13641702.

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

It is not a de Polignac number, because 20714631 - 2⁵ = 20714599 is a prime.

It is a super-2 number, since 2×20714631² = 858191874932322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20714621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493185 + ... + 493226.

It is an arithmetic number, because the mean of its divisors is an integer number (3945648).

Almost surely, 2^20714631 is an apocalyptic number.

20714631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20714631 is a deficient number, since it is larger than the sum of its proper divisors (10850553).

20714631 is an equidigital number, since it uses as much as digits as its factorization.

20714631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986421.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20714631 is about 4551.3328816952. The cubic root of 20714631 is about 274.6370130964.

The spelling of 20714631 in words is "twenty million, seven hundred fourteen thousand, six hundred thirty-one".