20698433 has 12 divisors (see below), whose sum is σ = 24164352. Its totient is φ = 17677800.

The previous prime is 20698397. The next prime is 20698453. The reversal of 20698433 is 33489602.

It is a happy number.

It is not a de Polignac number, because 20698433 - 2⁶ = 20698369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20698393 and 20698402.

It is not an unprimeable number, because it can be changed into a prime (20698453) 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 11 ways as a sum of consecutive naturals, for example, 17408 + ... + 18558.

It is an arithmetic number, because the mean of its divisors is an integer number (2013696).

Almost surely, 2^20698433 is an apocalyptic number.

It is an amenable number.

20698433 is a deficient number, since it is larger than the sum of its proper divisors (3465919).

20698433 is a wasteful number, since it uses less digits than its factorization.

20698433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1525 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 20698433 is about 4549.5530549714. The cubic root of 20698433 is about 274.5654094333.

The spelling of 20698433 in words is "twenty million, six hundred ninety-eight thousand, four hundred thirty-three".