167980687 has 8 divisors (see below), whose sum is σ = 192889472. Its totient is φ = 143299800.

The previous prime is 167980643. The next prime is 167980693. The reversal of 167980687 is 786089761.

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

It is a de Polignac number, because none of the positive numbers 2^k-167980687 is a prime.

It is a super-2 number, since 2×167980687² = 56435022409983938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167980607) 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 7 ways as a sum of consecutive naturals, for example, 55389 + ... + 58342.

It is an arithmetic number, because the mean of its divisors is an integer number (24111184).

Almost surely, 2^167980687 is an apocalyptic number.

167980687 is a deficient number, since it is larger than the sum of its proper divisors (24908785).

167980687 is a wasteful number, since it uses less digits than its factorization.

167980687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113949.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 167980687 is about 12960.7363602536. The cubic root of 167980687 is about 551.7636903776.

The spelling of 167980687 in words is "one hundred sixty-seven million, nine hundred eighty thousand, six hundred eighty-seven".