7009864 has 8 divisors (see below), whose sum is σ = 13143510. Its totient is φ = 3504928.

The previous prime is 7009859. The next prime is 7009867. The reversal of 7009864 is 4689007.

It can be written as a sum of positive squares in only one way, i.e., 4884100 + 2125764 = 2210^2 + 1458^2 .

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

It is a super-3 number, since 3×7009864³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7009867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438109 + ... + 438124.

Almost surely, 2^7009864 is an apocalyptic number.

It is an amenable number.

7009864 is a deficient number, since it is larger than the sum of its proper divisors (6133646).

7009864 is a wasteful number, since it uses less digits than its factorization.

7009864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876239 (or 876235 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 7009864 is about 2647.6147756046. The cubic root of 7009864 is about 191.3829292154.

The spelling of 7009864 in words is "seven million, nine thousand, eight hundred sixty-four".