2598722087 has 4 divisors (see below), whose sum is σ = 2798623800. Its totient is φ = 2398820376.

The previous prime is 2598722069. The next prime is 2598722089. The reversal of 2598722087 is 7802278952.

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

It is a cyclic number.

It is not a de Polignac number, because 2598722087 - 2¹⁰ = 2598721063 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 (2598722089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99950837 + ... + 99950862.

It is an arithmetic number, because the mean of its divisors is an integer number (699655950).

Almost surely, 2^2598722087 is an apocalyptic number.

2598722087 is a deficient number, since it is larger than the sum of its proper divisors (199901713).

2598722087 is a wasteful number, since it uses less digits than its factorization.

2598722087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199901712.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The square root of 2598722087 is about 50977.6626278608. The cubic root of 2598722087 is about 1374.8435457468.

The spelling of 2598722087 in words is "two billion, five hundred ninety-eight million, seven hundred twenty-two thousand, eighty-seven".