20702995 has 8 divisors (see below), whose sum is σ = 25421616. Its totient is φ = 16177056.

The previous prime is 20702993. The next prime is 20703031. The reversal of 20702995 is 59920702.

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

It is a cyclic number.

It is not a de Polignac number, because 20702995 - 2¹ = 20702993 is a prime.

It is a super-2 number, since 2×20702995² = 857228003940050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20702995.

It is not an unprimeable number, because it can be changed into a prime (20702993) 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, 47932 + ... + 48361.

It is an arithmetic number, because the mean of its divisors is an integer number (3177702).

Almost surely, 2^20702995 is an apocalyptic number.

20702995 is a deficient number, since it is larger than the sum of its proper divisors (4718621).

20702995 is an equidigital number, since it uses as much as digits as its factorization.

20702995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96341.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 20702995 is about 4550.0543952792. The cubic root of 20702995 is about 274.5855796460.

The spelling of 20702995 in words is "twenty million, seven hundred two thousand, nine hundred ninety-five".