68291879 has 8 divisors (see below), whose sum is σ = 70055040. Its totient is φ = 66549600.

The previous prime is 68291863. The next prime is 68291891. The reversal of 68291879 is 97819286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68291879 - 2⁴ = 68291863 is a prime.

It is a super-3 number, since 3×68291879³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68291849) 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, 1514 + ... + 11784.

It is an arithmetic number, because the mean of its divisors is an integer number (8756880).

Almost surely, 2^68291879 is an apocalyptic number.

68291879 is a deficient number, since it is larger than the sum of its proper divisors (1763161).

68291879 is a wasteful number, since it uses less digits than its factorization.

68291879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10441.

The product of its digits is 435456, while the sum is 50.

The square root of 68291879 is about 8263.8900646124. The cubic root of 68291879 is about 408.7486714194.

The spelling of 68291879 in words is "sixty-eight million, two hundred ninety-one thousand, eight hundred seventy-nine".