7725998 has 16 divisors (see below), whose sum is σ = 13322880. Its totient is φ = 3291576.

The previous prime is 7725997. The next prime is 7726003. The reversal of 7725998 is 8995277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7725997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965 + ... + 4047.

It is an arithmetic number, because the mean of its divisors is an integer number (832680).

Almost surely, 2^7725998 is an apocalyptic number.

7725998 is a deficient number, since it is larger than the sum of its proper divisors (5596882).

7725998 is a wasteful number, since it uses less digits than its factorization.

7725998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271.

The product of its digits is 317520, while the sum is 47.

The square root of 7725998 is about 2779.5679520386. The cubic root of 7725998 is about 197.6900739175.

The spelling of 7725998 in words is "seven million, seven hundred twenty-five thousand, nine hundred ninety-eight".