8513968 has 20 divisors (see below), whose sum is σ = 16555240. Its totient is φ = 4241664.

The previous prime is 8513951. The next prime is 8513969. The reversal of 8513968 is 8693158.

It is a happy number.

It is a super-2 number, since 2×8513968² = 144975302210048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8513968.

It is not an unprimeable number, because it can be changed into a prime (8513969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4603 + ... + 6181.

It is an arithmetic number, because the mean of its divisors is an integer number (827762).

Almost surely, 2^8513968 is an apocalyptic number.

It is an amenable number.

8513968 is a deficient number, since it is larger than the sum of its proper divisors (8041272).

8513968 is a wasteful number, since it uses less digits than its factorization.

8513968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924 (or 1918 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 8513968 is about 2917.8704563431. The cubic root of 8513968 is about 204.1944832478.

The spelling of 8513968 in words is "eight million, five hundred thirteen thousand, nine hundred sixty-eight".