68421874 has 8 divisors (see below), whose sum is σ = 104164848. Its totient is φ = 33700260.

The previous prime is 68421863. The next prime is 68421877. The reversal of 68421874 is 47812486.

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

It is not an unprimeable number, because it can be changed into a prime (68421877) 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, 255172 + ... + 255439.

It is an arithmetic number, because the mean of its divisors is an integer number (13020606).

Almost surely, 2^68421874 is an apocalyptic number.

68421874 is a deficient number, since it is larger than the sum of its proper divisors (35742974).

68421874 is a wasteful number, since it uses less digits than its factorization.

68421874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510680.

The product of its digits is 86016, while the sum is 40.

The square root of 68421874 is about 8271.7515678362. The cubic root of 68421874 is about 409.0078608732.

The spelling of 68421874 in words is "sixty-eight million, four hundred twenty-one thousand, eight hundred seventy-four".