7007990 has 16 divisors (see below), whose sum is σ = 13761360. Its totient is φ = 2548320.

The previous prime is 7007989. The next prime is 7007993. The reversal of 7007990 is 997007.

It is a super-2 number, since 2×7007990² = 98223847680200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7007993) 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, 31745 + ... + 31964.

It is an arithmetic number, because the mean of its divisors is an integer number (860085).

Almost surely, 2^7007990 is an apocalyptic number.

7007990 is a deficient number, since it is larger than the sum of its proper divisors (6753370).

7007990 is a wasteful number, since it uses less digits than its factorization.

7007990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63727.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 7007990 is about 2647.2608484998. The cubic root of 7007990 is about 191.3658730797.

It can be divided in two parts, 7007 and 990, that added together give a palindrome (7997).

The spelling of 7007990 in words is "seven million, seven thousand, nine hundred ninety".