7120690 has 16 divisors (see below), whose sum is σ = 12855960. Its totient is φ = 2839680.

The previous prime is 7120679. The next prime is 7120697. The reversal of 7120690 is 960217.

It can be written as a sum of positive squares in 4 ways, for example, as 4879681 + 2241009 = 2209^2 + 1497^2 .

It is a super-2 number, since 2×7120690² = 101408452152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7120697) 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, 3220 + ... + 4960.

Almost surely, 2^7120690 is an apocalyptic number.

7120690 is a deficient number, since it is larger than the sum of its proper divisors (5735270).

7120690 is a wasteful number, since it uses less digits than its factorization.

7120690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 7120690 is about 2668.4621039093. The cubic root of 7120690 is about 192.3862486444.

The spelling of 7120690 in words is "seven million, one hundred twenty thousand, six hundred ninety".