7045664 has 12 divisors (see below), whose sum is σ = 13871214. Its totient is φ = 3522816.

The previous prime is 7045657. The next prime is 7045669. The reversal of 7045664 is 4665407.

It can be written as a sum of positive squares in only one way, i.e., 6250000 + 795664 = 2500^2 + 892^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 220177 = 7045664 / (7 + 0 + 4 + 5 + 6 + 6 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 7045664.

It is not an unprimeable number, because it can be changed into a prime (7045669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110057 + ... + 110120.

Almost surely, 2^7045664 is an apocalyptic number.

It is an amenable number.

7045664 is a deficient number, since it is larger than the sum of its proper divisors (6825550).

7045664 is a wasteful number, since it uses less digits than its factorization.

7045664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220187 (or 220179 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 7045664 is about 2654.3669678475. The cubic root of 7045664 is about 191.7081793720.

The spelling of 7045664 in words is "seven million, forty-five thousand, six hundred sixty-four".