68971388 has 24 divisors (see below), whose sum is σ = 127733760. Its totient is φ = 32518640.

The previous prime is 68971381. The next prime is 68971393. The reversal of 68971388 is 88317986.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68971381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253 + ... + 11811.

It is an arithmetic number, because the mean of its divisors is an integer number (5322240).

Almost surely, 2^68971388 is an apocalyptic number.

It is an amenable number.

68971388 is a deficient number, since it is larger than the sum of its proper divisors (58762372).

68971388 is a wasteful number, since it uses less digits than its factorization.

68971388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10657 (or 10655 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The square root of 68971388 is about 8304.9014443279. The cubic root of 68971388 is about 410.0998923765.

The spelling of 68971388 in words is "sixty-eight million, nine hundred seventy-one thousand, three hundred eighty-eight".