68617723 has 8 divisors (see below), whose sum is σ = 71927856. Its totient is φ = 65385600.

The previous prime is 68617699. The next prime is 68617733. The reversal of 68617723 is 32771686.

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 68617723 - 2⁵ = 68617691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68617733) 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, 17698 + ... + 21223.

It is an arithmetic number, because the mean of its divisors is an integer number (8990982).

Almost surely, 2^68617723 is an apocalyptic number.

68617723 is a deficient number, since it is larger than the sum of its proper divisors (3310133).

68617723 is a wasteful number, since it uses less digits than its factorization.

68617723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39005.

The product of its digits is 84672, while the sum is 40.

The square root of 68617723 is about 8283.5815321635. The cubic root of 68617723 is about 409.3977336248.

The spelling of 68617723 in words is "sixty-eight million, six hundred seventeen thousand, seven hundred twenty-three".