162968391 has 12 divisors (see below), whose sum is σ = 235515280. Its totient is φ = 108591840.

The previous prime is 162968357. The next prime is 162968417. The reversal of 162968391 is 193869261.

It is a happy number.

It is not a de Polignac number, because 162968391 - 2¹⁰ = 162967367 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 (162968191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24771 + ... + 30651.

Almost surely, 2^162968391 is an apocalyptic number.

162968391 is a deficient number, since it is larger than the sum of its proper divisors (72546889).

162968391 is a wasteful number, since it uses less digits than its factorization.

162968391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8966 (or 8963 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 162968391 is about 12765.9073708060. The cubic root of 162968391 is about 546.2202448416.

The spelling of 162968391 in words is "one hundred sixty-two million, nine hundred sixty-eight thousand, three hundred ninety-one".