168894497 has 8 divisors (see below), whose sum is σ = 180337344. Its totient is φ = 157793328.

The previous prime is 168894491. The next prime is 168894503. The reversal of 168894497 is 794498861.

It is an interprime number because it is at equal distance from previous prime (168894491) and next prime (168894503).

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 168894497 - 2⁸ = 168894241 is a prime.

It is a super-2 number, since 2×168894497² = 57050702233766018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168894491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84398 + ... + 86375.

It is an arithmetic number, because the mean of its divisors is an integer number (22542168).

Almost surely, 2^168894497 is an apocalyptic number.

It is an amenable number.

168894497 is a deficient number, since it is larger than the sum of its proper divisors (11442847).

168894497 is a wasteful number, since it uses less digits than its factorization.

168894497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170839.

The product of its digits is 3483648, while the sum is 56.

The square root of 168894497 is about 12995.9415588098. The cubic root of 168894497 is about 552.7624076495.

The spelling of 168894497 in words is "one hundred sixty-eight million, eight hundred ninety-four thousand, four hundred ninety-seven".