20698862 has 4 divisors (see below), whose sum is σ = 31048296. Its totient is φ = 10349430.

The previous prime is 20698859. The next prime is 20698871. The reversal of 20698862 is 26889602.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5174714 + ... + 5174717.

It is an arithmetic number, because the mean of its divisors is an integer number (7762074).

Almost surely, 2^20698862 is an apocalyptic number.

20698862 is a deficient number, since it is larger than the sum of its proper divisors (10349434).

20698862 is a wasteful number, since it uses less digits than its factorization.

20698862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10349433.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 20698862 is about 4549.6002022156. The cubic root of 20698862 is about 274.5673063200.

The spelling of 20698862 in words is "twenty million, six hundred ninety-eight thousand, eight hundred sixty-two".