7120664 has 8 divisors (see below), whose sum is σ = 13351260. Its totient is φ = 3560328.

The previous prime is 7120657. The next prime is 7120679. The reversal of 7120664 is 4660217.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445034 + ... + 445049.

Almost surely, 2^7120664 is an apocalyptic number.

It is an amenable number.

7120664 is a deficient number, since it is larger than the sum of its proper divisors (6230596).

7120664 is a wasteful number, since it uses less digits than its factorization.

7120664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890089 (or 890085 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 7120664 is about 2668.4572321849. The cubic root of 7120664 is about 192.3860144888.

The spelling of 7120664 in words is "seven million, one hundred twenty thousand, six hundred sixty-four".