68971635 has 64 divisors (see below), whose sum is σ = 133176960. Its totient is φ = 33730560.

The previous prime is 68971627. The next prime is 68971711. The reversal of 68971635 is 53617986.

It is a happy number.

68971635 is a `hidden beast` number, since 6 + 8 + 9 + 7 + 1 + 635 = 666.

It is not a de Polignac number, because 68971635 - 2³ = 68971627 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93729 + ... + 94461.

It is an arithmetic number, because the mean of its divisors is an integer number (2080890).

Almost surely, 2^68971635 is an apocalyptic number.

68971635 is a deficient number, since it is larger than the sum of its proper divisors (64205325).

68971635 is a wasteful number, since it uses less digits than its factorization.

68971635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 799 counting only the distinct ones).

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

The square root of 68971635 is about 8304.9163150510. The cubic root of 68971635 is about 410.1003819252.

The spelling of 68971635 in words is "sixty-eight million, nine hundred seventy-one thousand, six hundred thirty-five".