7003998 has 12 divisors (see below), whose sum is σ = 15175368. Its totient is φ = 2334660.

The previous prime is 7003991. The next prime is 7003999. The reversal of 7003998 is 8993007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7003991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194538 + ... + 194573.

It is an arithmetic number, because the mean of its divisors is an integer number (1264614).

Almost surely, 2^7003998 is an apocalyptic number.

7003998 is an abundant number, since it is smaller than the sum of its proper divisors (8171370).

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

7003998 is a wasteful number, since it uses less digits than its factorization.

7003998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389119 (or 389116 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 7003998 is about 2646.5067541950. The cubic root of 7003998 is about 191.3295299121.

It can be divided in two parts, 7003 and 998, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 7003998 in words is "seven million, three thousand, nine hundred ninety-eight".