20713675 has 6 divisors (see below), whose sum is σ = 25684988. Its totient is φ = 16570920.

The previous prime is 20713669. The next prime is 20713681. The reversal of 20713675 is 57631702.

It is an interprime number because it is at equal distance from previous prime (20713669) and next prime (20713681).

It is a de Polignac number, because none of the positive numbers 2^k-20713675 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 414249 + ... + 414298.

Almost surely, 2^20713675 is an apocalyptic number.

20713675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20713675 is a deficient number, since it is larger than the sum of its proper divisors (4971313).

20713675 is an equidigital number, since it uses as much as digits as its factorization.

20713675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828557 (or 828552 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 20713675 is about 4551.2278563043. The cubic root of 20713675 is about 274.6327881113.

The spelling of 20713675 in words is "twenty million, seven hundred thirteen thousand, six hundred seventy-five".