68536971 has 24 divisors (see below), whose sum is σ = 104549120. Its totient is φ = 43145136.

The previous prime is 68536961. The next prime is 68536991. The reversal of 68536971 is 17963586.

It is a happy number.

It is not a de Polignac number, because 68536971 - 2¹⁴ = 68520587 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68536961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82866 + ... + 83688.

Almost surely, 2^68536971 is an apocalyptic number.

68536971 is a deficient number, since it is larger than the sum of its proper divisors (36012149).

68536971 is a wasteful number, since it uses less digits than its factorization.

68536971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1332 counting only the distinct ones).

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

The square root of 68536971 is about 8278.7058771284. The cubic root of 68536971 is about 409.2370722025.

It can be divided in two parts, 6853 and 6971, that added together give a cube (13824 = 24³).

The spelling of 68536971 in words is "sixty-eight million, five hundred thirty-six thousand, nine hundred seventy-one".