168431417 has 8 divisors (see below), whose sum is σ = 209992512. Its totient is φ = 131245200.

The previous prime is 168431407. The next prime is 168431423. The reversal of 168431417 is 714134861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168431417 - 2⁶ = 168431353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168431407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093634 + ... + 1093787.

It is an arithmetic number, because the mean of its divisors is an integer number (26249064).

Almost surely, 2^168431417 is an apocalyptic number.

It is an amenable number.

168431417 is a deficient number, since it is larger than the sum of its proper divisors (41561095).

168431417 is a wasteful number, since it uses less digits than its factorization.

168431417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187439.

The product of its digits is 16128, while the sum is 35.

The square root of 168431417 is about 12978.1129984293. The cubic root of 168431417 is about 552.2567517079.

The spelling of 168431417 in words is "one hundred sixty-eight million, four hundred thirty-one thousand, four hundred seventeen".