2617998 has 32 divisors (see below), whose sum is σ = 5571072. Its totient is φ = 818400.

The previous prime is 2617997. The next prime is 2618003. The reversal of 2617998 is 8997162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2617997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8263 + ... + 8573.

It is an arithmetic number, because the mean of its divisors is an integer number (174096).

2^2617998 is an apocalyptic number.

2617998 is an abundant number, since it is smaller than the sum of its proper divisors (2953074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2617998 is a wasteful number, since it uses less digits than its factorization.

2617998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its digits is 54432, while the sum is 42.

The square root of 2617998 is about 1618.0228675764. The cubic root of 2617998 is about 137.8234457141.

The spelling of 2617998 in words is "two million, six hundred seventeen thousand, nine hundred ninety-eight".