2890838521 has 4 divisors (see below), whose sum is σ = 2903462500. Its totient is φ = 2878214544.

The previous prime is 2890838501. The next prime is 2890838539. The reversal of 2890838521 is 1258380982.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2643090921 + 247747600 = 51411^2 + 15740^2 .

It is a cyclic number.

It is not a de Polignac number, because 2890838521 - 2⁷ = 2890838393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2890838501) 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, 6311646 + ... + 6312103.

It is an arithmetic number, because the mean of its divisors is an integer number (725865625).

Almost surely, 2^2890838521 is an apocalyptic number.

It is an amenable number.

2890838521 is a deficient number, since it is larger than the sum of its proper divisors (12623979).

2890838521 is a wasteful number, since it uses less digits than its factorization.

2890838521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12623978.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 2890838521 is about 53766.5185873142. The cubic root of 2890838521 is about 1424.5398774639.

The spelling of 2890838521 in words is "two billion, eight hundred ninety million, eight hundred thirty-eight thousand, five hundred twenty-one".