168437087 has 16 divisors (see below), whose sum is σ = 207735360. Its totient is φ = 132993792.

The previous prime is 168437081. The next prime is 168437099. The reversal of 168437087 is 780734861.

It is a cyclic number.

It is not a de Polignac number, because 168437087 - 2⁶ = 168437023 is a prime.

It is a Smith number, since the sum of its digits (44) 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 (168437081) 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 15 ways as a sum of consecutive naturals, for example, 50153 + ... + 53405.

It is an arithmetic number, because the mean of its divisors is an integer number (12983460).

Almost surely, 2^168437087 is an apocalyptic number.

168437087 is a deficient number, since it is larger than the sum of its proper divisors (39298273).

168437087 is a wasteful number, since it uses less digits than its factorization.

168437087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 168437087 is about 12978.3314412909. The cubic root of 168437087 is about 552.2629486132.

The spelling of 168437087 in words is "one hundred sixty-eight million, four hundred thirty-seven thousand, eighty-seven".