68023975 has 12 divisors (see below), whose sum is σ = 84872296. Its totient is φ = 54082080.

The previous prime is 68023973. The next prime is 68023999. The reversal of 68023975 is 57932086.

It is not a de Polignac number, because 68023975 - 2¹ = 68023973 is a prime.

It is a super-2 number, since 2×68023975² = 9254522349601250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) 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 (68023973) 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, 4272 + ... + 12421.

Almost surely, 2^68023975 is an apocalyptic number.

68023975 is a deficient number, since it is larger than the sum of its proper divisors (16848321).

68023975 is a wasteful number, since it uses less digits than its factorization.

68023975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16866 (or 16861 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 68023975 is about 8247.6648210266. The cubic root of 68023975 is about 408.2134740068.

The spelling of 68023975 in words is "sixty-eight million, twenty-three thousand, nine hundred seventy-five".