7900064 has 24 divisors (see below), whose sum is σ = 16091460. Its totient is φ = 3813376.

The previous prime is 7900043. The next prime is 7900073. The reversal of 7900064 is 4600097.

It can be written as a sum of positive squares in 2 ways, for example, as 7075600 + 824464 = 2660^2 + 908^2 .

It is a super-2 number, since 2×7900064² = 124822022408192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3329 + ... + 5184.

Almost surely, 2^7900064 is an apocalyptic number.

It is an amenable number.

7900064 is an abundant number, since it is smaller than the sum of its proper divisors (8191396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7900064 is a wasteful number, since it uses less digits than its factorization.

7900064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8552 (or 8544 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 7900064 is about 2810.7052495771. The cubic root of 7900064 is about 199.1637079521.

The spelling of 7900064 in words is "seven million, nine hundred thousand, sixty-four".