68720927 has 8 divisors (see below), whose sum is σ = 75029760. Its totient is φ = 62422360.

The previous prime is 68720887. The next prime is 68720933. The reversal of 68720927 is 72902786.

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

It is not a de Polignac number, because 68720927 - 2⁸ = 68720671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68720947) 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, 20474 + ... + 23592.

It is an arithmetic number, because the mean of its divisors is an integer number (9378720).

Almost surely, 2^68720927 is an apocalyptic number.

68720927 is a deficient number, since it is larger than the sum of its proper divisors (6308833).

68720927 is a wasteful number, since it uses less digits than its factorization.

68720927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 68720927 is about 8289.8086226402. The cubic root of 68720927 is about 409.6028813954.

The spelling of 68720927 in words is "sixty-eight million, seven hundred twenty thousand, nine hundred twenty-seven".