68506965 has 80 divisors (see below), whose sum is σ = 129634560. Its totient is φ = 34577280.

The previous prime is 68506939. The next prime is 68506967. The reversal of 68506965 is 56960586.

It is not a de Polignac number, because 68506965 - 2⁹ = 68506453 is a prime.

It is a super-2 number, since 2×68506965² = 9386408507022450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68506965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68506967) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1123035 + ... + 1123095.

It is an arithmetic number, because the mean of its divisors is an integer number (1620432).

Almost surely, 2^68506965 is an apocalyptic number.

68506965 is the 4779-th octagonal number.

It is an amenable number.

68506965 is a deficient number, since it is larger than the sum of its proper divisors (61127595).

68506965 is a wasteful number, since it uses less digits than its factorization.

68506965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 68506965 is about 8276.8934389661. The cubic root of 68506965 is about 409.1773411314.

The spelling of 68506965 in words is "sixty-eight million, five hundred six thousand, nine hundred sixty-five".