2859549421 has 4 divisors (see below), whose sum is σ = 2859658012. Its totient is φ = 2859440832.

The previous prime is 2859549409. The next prime is 2859549463. The reversal of 2859549421 is 1249459582.

2859549421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 686964100 + 2172585321 = 26210^2 + 46611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2859549421 is a prime.

It is a super-2 number, since 2×2859549421² = 16354045782282870482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2859540421) 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, 13045 + ... + 76741.

It is an arithmetic number, because the mean of its divisors is an integer number (714914503).

Almost surely, 2^2859549421 is an apocalyptic number.

It is an amenable number.

2859549421 is a deficient number, since it is larger than the sum of its proper divisors (108591).

2859549421 is an equidigital number, since it uses as much as digits as its factorization.

2859549421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108590.

The product of its digits is 1036800, while the sum is 49.

The square root of 2859549421 is about 53474.7549877510. The cubic root of 2859549421 is about 1419.3817021542.

The spelling of 2859549421 in words is "two billion, eight hundred fifty-nine million, five hundred forty-nine thousand, four hundred twenty-one".