68801539 has 8 divisors (see below), whose sum is σ = 69975360. Its totient is φ = 67636800.

The previous prime is 68801531. The next prime is 68801569. The reversal of 68801539 is 93510886.

It is a happy number.

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 68801539 - 2³ = 68801531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68801531) 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, 13974 + ... + 18244.

It is an arithmetic number, because the mean of its divisors is an integer number (8746920).

Almost surely, 2^68801539 is an apocalyptic number.

68801539 is a deficient number, since it is larger than the sum of its proper divisors (1173821).

68801539 is a wasteful number, since it uses less digits than its factorization.

68801539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 68801539 is about 8294.6693122752. The cubic root of 68801539 is about 409.7629782129.

The spelling of 68801539 in words is "sixty-eight million, eight hundred one thousand, five hundred thirty-nine".