68233873 has 4 divisors (see below), whose sum is σ = 68287780. Its totient is φ = 68179968.

The previous prime is 68233871. The next prime is 68233877. The reversal of 68233873 is 37833286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37833286 = 2 ⋅18916643.

It can be written as a sum of positive squares in 2 ways, for example, as 66961489 + 1272384 = 8183^2 + 1128^2 .

It is a cyclic number.

It is not a de Polignac number, because 68233873 - 2¹ = 68233871 is a prime.

It is a super-2 number, since 2×68233873² = 9311722849160258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68233871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25008 + ... + 27601.

It is an arithmetic number, because the mean of its divisors is an integer number (17071945).

Almost surely, 2^68233873 is an apocalyptic number.

It is an amenable number.

68233873 is a deficient number, since it is larger than the sum of its proper divisors (53907).

68233873 is a wasteful number, since it uses less digits than its factorization.

68233873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53906.

The product of its digits is 145152, while the sum is 40.

The square root of 68233873 is about 8260.3797128219. The cubic root of 68233873 is about 408.6329105028.

The spelling of 68233873 in words is "sixty-eight million, two hundred thirty-three thousand, eight hundred seventy-three".