7425998 has 16 divisors (see below), whose sum is σ = 11890320. Its totient is φ = 3468096.

The previous prime is 7425983. The next prime is 7426031. The reversal of 7425998 is 8995247.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

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, 1436 + ... + 4112.

It is an arithmetic number, because the mean of its divisors is an integer number (743145).

Almost surely, 2^7425998 is an apocalyptic number.

7425998 is a deficient number, since it is larger than the sum of its proper divisors (4464322).

7425998 is a wasteful number, since it uses less digits than its factorization.

7425998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771.

The product of its digits is 181440, while the sum is 44.

The square root of 7425998 is about 2725.0684395075. The cubic root of 7425998 is about 195.0974573113.

The spelling of 7425998 in words is "seven million, four hundred twenty-five thousand, nine hundred ninety-eight".