68731695 has 12 divisors (see below), whose sum is σ = 119135016. Its totient is φ = 36656880.

The previous prime is 68731693. The next prime is 68731699. The reversal of 68731695 is 59613786.

It is a happy number.

It is not a de Polignac number, because 68731695 - 2¹ = 68731693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1527371 = 68731695 / (6 + 8 + 7 + 3 + 1 + 6 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 68731695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68731693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763641 + ... + 763730.

It is an arithmetic number, because the mean of its divisors is an integer number (9927918).

Almost surely, 2^68731695 is an apocalyptic number.

68731695 is a deficient number, since it is larger than the sum of its proper divisors (50403321).

68731695 is a wasteful number, since it uses less digits than its factorization.

68731695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527382 (or 1527379 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 68731695 is about 8290.4580693711. The cubic root of 68731695 is about 409.6242740709.

The spelling of 68731695 in words is "sixty-eight million, seven hundred thirty-one thousand, six hundred ninety-five".