20484807 has 16 divisors (see below), whose sum is σ = 31342080. Its totient is φ = 11657952.

The previous prime is 20484799. The next prime is 20484833. The reversal of 20484807 is 70848402.

It is not a de Polignac number, because 20484807 - 2³ = 20484799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20484307) 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, 3669 + ... + 7377.

It is an arithmetic number, because the mean of its divisors is an integer number (1958880).

Almost surely, 2^20484807 is an apocalyptic number.

20484807 is a deficient number, since it is larger than the sum of its proper divisors (10857273).

20484807 is a wasteful number, since it uses less digits than its factorization.

20484807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3982.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 20484807 is about 4526.0144719168. The cubic root of 20484807 is about 273.6175556645.

The spelling of 20484807 in words is "twenty million, four hundred eighty-four thousand, eight hundred seven".