2427708921 has 64 divisors (see below), whose sum is σ = 3761725440. Its totient is φ = 1378944000.

The previous prime is 2427708917. The next prime is 2427708923. The reversal of 2427708921 is 1298077242.

It is not a de Polignac number, because 2427708921 - 2² = 2427708917 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2427708923) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10073361 + ... + 10073601.

It is an arithmetic number, because the mean of its divisors is an integer number (58776960).

Almost surely, 2^2427708921 is an apocalyptic number.

It is an amenable number.

2427708921 is a deficient number, since it is larger than the sum of its proper divisors (1334016519).

2427708921 is a wasteful number, since it uses less digits than its factorization.

2427708921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 2427708921 is about 49271.7862574516. The cubic root of 2427708921 is about 1343.9987704380.

The spelling of 2427708921 in words is "two billion, four hundred twenty-seven million, seven hundred eight thousand, nine hundred twenty-one".