68319637 has 8 divisors (see below), whose sum is σ = 71398656. Its totient is φ = 65249712.

The previous prime is 68319613. The next prime is 68319661. The reversal of 68319637 is 73691386.

It is an interprime number because it is at equal distance from previous prime (68319613) and next prime (68319661).

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

It is not a de Polignac number, because 68319637 - 2¹⁹ = 67795349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68319593 and 68319602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68319697) 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, 16468 + ... + 20194.

It is an arithmetic number, because the mean of its divisors is an integer number (8924832).

Almost surely, 2^68319637 is an apocalyptic number.

It is an amenable number.

68319637 is a deficient number, since it is larger than the sum of its proper divisors (3079019).

68319637 is a wasteful number, since it uses less digits than its factorization.

68319637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547.

The product of its digits is 163296, while the sum is 43.

The square root of 68319637 is about 8265.5693693780. The cubic root of 68319637 is about 408.8040440781.

The spelling of 68319637 in words is "sixty-eight million, three hundred nineteen thousand, six hundred thirty-seven".