168963907 has 6 divisors (see below), whose sum is σ = 196549908. Its totient is φ = 144826164.

The previous prime is 168963877. The next prime is 168963923. The reversal of 168963907 is 709369861.

It is not a de Polignac number, because 168963907 - 2⁷ = 168963779 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 3448243 = 168963907 / (1 + 6 + 8 + 9 + 6 + 3 + 9 + 0 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168963937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1724073 + ... + 1724170.

It is an arithmetic number, because the mean of its divisors is an integer number (32758318).

Almost surely, 2^168963907 is an apocalyptic number.

168963907 is a deficient number, since it is larger than the sum of its proper divisors (27586001).

168963907 is an equidigital number, since it uses as much as digits as its factorization.

168963907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448257 (or 3448250 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 168963907 is about 12998.6117335660. The cubic root of 168963907 is about 552.8381195776.

The spelling of 168963907 in words is "one hundred sixty-eight million, nine hundred sixty-three thousand, nine hundred seven".