2584670921 has 8 divisors (see below), whose sum is σ = 2981517120. Its totient is φ = 2194726608.

The previous prime is 2584670917. The next prime is 2584670969. The reversal of 2584670921 is 1290764852.

It is a happy number.

2584670921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2584670921 - 2² = 2584670917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2584670821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1724666 + ... + 1726163.

It is an arithmetic number, because the mean of its divisors is an integer number (372689640).

Almost surely, 2^2584670921 is an apocalyptic number.

It is an amenable number.

2584670921 is a deficient number, since it is larger than the sum of its proper divisors (396846199).

2584670921 is a wasteful number, since it uses less digits than its factorization.

2584670921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450943.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2584670921 is about 50839.6589386672. The cubic root of 2584670921 is about 1372.3611618866.

The spelling of 2584670921 in words is "two billion, five hundred eighty-four million, six hundred seventy thousand, nine hundred twenty-one".