168424699 has 4 divisors (see below), whose sum is σ = 175747536. Its totient is φ = 161101864.

The previous prime is 168424687. The next prime is 168424717. The reversal of 168424699 is 996424861.

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 168424699 - 2¹⁷ = 168293627 is a prime.

It is a super-3 number, since 3×168424699³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168424609) 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, 3661384 + ... + 3661429.

It is an arithmetic number, because the mean of its divisors is an integer number (43936884).

Almost surely, 2^168424699 is an apocalyptic number.

168424699 is a deficient number, since it is larger than the sum of its proper divisors (7322837).

168424699 is an equidigital number, since it uses as much as digits as its factorization.

168424699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322836.

The product of its digits is 746496, while the sum is 49.

The square root of 168424699 is about 12977.8541754791. The cubic root of 168424699 is about 552.2494092333.

The spelling of 168424699 in words is "one hundred sixty-eight million, four hundred twenty-four thousand, six hundred ninety-nine".