68539427 has 8 divisors (see below), whose sum is σ = 79168752. Its totient is φ = 58643200.

The previous prime is 68539411. The next prime is 68539433. The reversal of 68539427 is 72493586.

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

It is not a de Polignac number, because 68539427 - 2⁴ = 68539411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68539447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183074 + ... + 183447.

It is an arithmetic number, because the mean of its divisors is an integer number (9896094).

Almost surely, 2^68539427 is an apocalyptic number.

68539427 is a deficient number, since it is larger than the sum of its proper divisors (10629325).

68539427 is a wasteful number, since it uses less digits than its factorization.

68539427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366549.

The product of its digits is 362880, while the sum is 44.

The square root of 68539427 is about 8278.8542081619. The cubic root of 68539427 is about 409.2419604364.

The spelling of 68539427 in words is "sixty-eight million, five hundred thirty-nine thousand, four hundred twenty-seven".