437996166 has 8 divisors (see below), whose sum is σ = 875992344. Its totient is φ = 145998720.

The previous prime is 437996161. The next prime is 437996171. The reversal of 437996166 is 661699734.

It is an interprime number because it is at equal distance from previous prime (437996161) and next prime (437996171).

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

437996166 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (437996161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36499675 + ... + 36499686.

It is an arithmetic number, because the mean of its divisors is an integer number (109499043).

Almost surely, 2^437996166 is an apocalyptic number.

437996166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

437996166 is a wasteful number, since it uses less digits than its factorization.

437996166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72999366.

The product of its digits is 1469664, while the sum is 51.

The square root of 437996166 is about 20928.3579384528. The cubic root of 437996166 is about 759.4341159214.

The spelling of 437996166 in words is "four hundred thirty-seven million, nine hundred ninety-six thousand, one hundred sixty-six".