7117990 has 16 divisors (see below), whose sum is σ = 13977360. Its totient is φ = 2588320.

The previous prime is 7117987. The next prime is 7118077. The reversal of 7117990 is 997117.

It is a happy 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, 32245 + ... + 32464.

It is an arithmetic number, because the mean of its divisors is an integer number (873585).

Almost surely, 2^7117990 is an apocalyptic number.

7117990 is a deficient number, since it is larger than the sum of its proper divisors (6859370).

7117990 is a wasteful number, since it uses less digits than its factorization.

7117990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64727.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 7117990 is about 2667.9561465661. The cubic root of 7117990 is about 192.3619294404.

The spelling of 7117990 in words is "seven million, one hundred seventeen thousand, nine hundred ninety".