64853668 has 24 divisors (see below), whose sum is σ = 124475904. Its totient is φ = 29320800.

The previous prime is 64853653. The next prime is 64853683. The reversal of 64853668 is 86635846.

It is an interprime number because it is at equal distance from previous prime (64853653) and next prime (64853683).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4546 + ... + 12262.

It is an arithmetic number, because the mean of its divisors is an integer number (5186496).

Almost surely, 2^64853668 is an apocalyptic number.

It is an amenable number.

64853668 is a deficient number, since it is larger than the sum of its proper divisors (59622236).

64853668 is a wasteful number, since it uses less digits than its factorization.

64853668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7923 (or 7921 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 64853668 is about 8053.1775095300. The cubic root of 64853668 is about 401.7706256472.

It can be divided in two parts, 6485 and 3668, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 64853668 in words is "sixty-four million, eight hundred fifty-three thousand, six hundred sixty-eight".