20411607 has 4 divisors (see below), whose sum is σ = 27215480. Its totient is φ = 13607736.

The previous prime is 20411593. The next prime is 20411623. The reversal of 20411607 is 70611402.

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

It is not a de Polignac number, because 20411607 - 2⁴ = 20411591 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 (20411647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3401932 + ... + 3401937.

It is an arithmetic number, because the mean of its divisors is an integer number (6803870).

Almost surely, 2^20411607 is an apocalyptic number.

20411607 is a deficient number, since it is larger than the sum of its proper divisors (6803873).

20411607 is an equidigital number, since it uses as much as digits as its factorization.

20411607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6803872.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 20411607 is about 4517.9206500336. The cubic root of 20411607 is about 273.2912535195.

It can be divided in two parts, 204 and 11607, that added together give a palindrome (11811).

The spelling of 20411607 in words is "twenty million, four hundred eleven thousand, six hundred seven".