968699139 has 4 divisors (see below), whose sum is σ = 1291598856. Its totient is φ = 645799424.

The previous prime is 968699113. The next prime is 968699143. The reversal of 968699139 is 931996869.

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 968699139 - 2⁵ = 968699107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (968699339) 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, 161449854 + ... + 161449859.

It is an arithmetic number, because the mean of its divisors is an integer number (322899714).

Almost surely, 2^968699139 is an apocalyptic number.

968699139 is a deficient number, since it is larger than the sum of its proper divisors (322899717).

968699139 is a wasteful number, since it uses less digits than its factorization.

968699139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322899716.

The product of its digits is 5668704, while the sum is 60.

The square root of 968699139 is about 31123.9319334817. The cubic root of 968699139 is about 989.4555857880.

The spelling of 968699139 in words is "nine hundred sixty-eight million, six hundred ninety-nine thousand, one hundred thirty-nine".