20698733 has 16 divisors (see below), whose sum is σ = 24037440. Its totient is φ = 17625600.

The previous prime is 20698729. The next prime is 20698739. The reversal of 20698733 is 33789602.

It is a cyclic number.

It is not a de Polignac number, because 20698733 - 2² = 20698729 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20698739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19763 + ... + 20783.

It is an arithmetic number, because the mean of its divisors is an integer number (1502340).

Almost surely, 2^20698733 is an apocalyptic number.

It is an amenable number.

20698733 is a deficient number, since it is larger than the sum of its proper divisors (3338707).

20698733 is a wasteful number, since it uses less digits than its factorization.

20698733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 20698733 is about 4549.5860251236. The cubic root of 20698733 is about 274.5667359303.

The spelling of 20698733 in words is "twenty million, six hundred ninety-eight thousand, seven hundred thirty-three".