2517998 has 16 divisors (see below), whose sum is σ = 4434144. Its totient is φ = 1049760.

The previous prime is 2517959. The next prime is 2518003. The reversal of 2517998 is 8997152.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1913 + ... + 2948.

It is an arithmetic number, because the mean of its divisors is an integer number (277134).

2^2517998 is an apocalyptic number.

2517998 is a deficient number, since it is larger than the sum of its proper divisors (1916146).

2517998 is a wasteful number, since it uses less digits than its factorization.

2517998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907.

The product of its digits is 45360, while the sum is 41.

The square root of 2517998 is about 1586.8200906215. The cubic root of 2517998 is about 136.0457962840.

The spelling of 2517998 in words is "two million, five hundred seventeen thousand, nine hundred ninety-eight".