68965533 has 32 divisors (see below), whose sum is σ = 125753600. Its totient is φ = 36376128.

The previous prime is 68965529. The next prime is 68965543. The reversal of 68965533 is 33556986.

68965533 is a `hidden beast` number, since 6 + 8 + 96 + 553 + 3 = 666.

It is not a de Polignac number, because 68965533 - 2² = 68965529 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68965543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11578 + ... + 16491.

It is an arithmetic number, because the mean of its divisors is an integer number (3929800).

Almost surely, 2^68965533 is an apocalyptic number.

68965533 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

68965533 is a deficient number, since it is larger than the sum of its proper divisors (56788067).

68965533 is a wasteful number, since it uses less digits than its factorization.

68965533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28098 (or 28092 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 68965533 is about 8304.5489341686. The cubic root of 68965533 is about 410.0882875507.

The spelling of 68965533 in words is "sixty-eight million, nine hundred sixty-five thousand, five hundred thirty-three".