68401879 has 8 divisors (see below), whose sum is σ = 84187040. Its totient is φ = 54120096.

The previous prime is 68401871. The next prime is 68401933. The reversal of 68401879 is 97810486.

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 68401879 - 2³ = 68401871 is a prime.

It is a super-3 number, since 3×68401879³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68401871) 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, 375744 + ... + 375925.

It is an arithmetic number, because the mean of its divisors is an integer number (10523380).

Almost surely, 2^68401879 is an apocalyptic number.

68401879 is a deficient number, since it is larger than the sum of its proper divisors (15785161).

68401879 is a wasteful number, since it uses less digits than its factorization.

68401879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751689.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 68401879 is about 8270.5428479635. The cubic root of 68401879 is about 408.9680153849.

The spelling of 68401879 in words is "sixty-eight million, four hundred one thousand, eight hundred seventy-nine".