68899427 has 4 divisors (see below), whose sum is σ = 69284520. Its totient is φ = 68514336.

The previous prime is 68899409. The next prime is 68899429. The reversal of 68899427 is 72499886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68899427 - 2¹⁴ = 68883043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68899429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192278 + ... + 192635.

It is an arithmetic number, because the mean of its divisors is an integer number (17321130).

Almost surely, 2^68899427 is an apocalyptic number.

68899427 is a deficient number, since it is larger than the sum of its proper divisors (385093).

68899427 is a wasteful number, since it uses less digits than its factorization.

68899427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385092.

The product of its digits is 1741824, while the sum is 53.

The square root of 68899427 is about 8300.5678721398. The cubic root of 68899427 is about 409.9572174276.

The spelling of 68899427 in words is "sixty-eight million, eight hundred ninety-nine thousand, four hundred twenty-seven".