168936479 has 2 divisors, whose sum is σ = 168936480. Its totient is φ = 168936478.

The previous prime is 168936437. The next prime is 168936499. The reversal of 168936479 is 974639861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168936479 - 2¹⁶ = 168870943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168936479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168936409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84468239 + 84468240.

It is an arithmetic number, because the mean of its divisors is an integer number (84468240).

Almost surely, 2^168936479 is an apocalyptic number.

168936479 is a deficient number, since it is larger than the sum of its proper divisors (1).

168936479 is an equidigital number, since it uses as much as digits as its factorization.

168936479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The square root of 168936479 is about 12997.5566550025. The cubic root of 168936479 is about 552.8082037911.

The spelling of 168936479 in words is "one hundred sixty-eight million, nine hundred thirty-six thousand, four hundred seventy-nine".