68575679 has 8 divisors (see below), whose sum is σ = 70882560. Its totient is φ = 66304216.

The previous prime is 68575631. The next prime is 68575723. The reversal of 68575679 is 97657586.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-68575679 is a prime.

It is a super-2 number, since 2×68575679² = 9405247500622082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68575679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68575609) 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, 4889 + ... + 12690.

It is an arithmetic number, because the mean of its divisors is an integer number (8860320).

Almost surely, 2^68575679 is an apocalyptic number.

68575679 is a deficient number, since it is larger than the sum of its proper divisors (2306881).

68575679 is a wasteful number, since it uses less digits than its factorization.

68575679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17709.

The product of its digits is 3175200, while the sum is 53.

The square root of 68575679 is about 8281.0433521387. The cubic root of 68575679 is about 409.3141000564.

The spelling of 68575679 in words is "sixty-eight million, five hundred seventy-five thousand, six hundred seventy-nine".