968203391 has 4 divisors (see below), whose sum is σ = 970175784. Its totient is φ = 966231000.

The previous prime is 968203373. The next prime is 968203403. The reversal of 968203391 is 193302869.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-968203391 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 (968200391) 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, 985460 + ... + 986441.

It is an arithmetic number, because the mean of its divisors is an integer number (242543946).

Almost surely, 2^968203391 is an apocalyptic number.

968203391 is a deficient number, since it is larger than the sum of its proper divisors (1972393).

968203391 is a wasteful number, since it uses less digits than its factorization.

968203391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972392.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 968203391 is about 31115.9668176967. The cubic root of 968203391 is about 989.2867668331.

The spelling of 968203391 in words is "nine hundred sixty-eight million, two hundred three thousand, three hundred ninety-one".