167941987 has 8 divisors (see below), whose sum is σ = 173880000. Its totient is φ = 162013824.

The previous prime is 167941981. The next prime is 167941993. The reversal of 167941987 is 789149761.

It is an interprime number because it is at equal distance from previous prime (167941981) and next prime (167941993).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167941987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167941981) 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, 56523 + ... + 59419.

It is an arithmetic number, because the mean of its divisors is an integer number (21735000).

Almost surely, 2^167941987 is an apocalyptic number.

167941987 is a deficient number, since it is larger than the sum of its proper divisors (5938013).

167941987 is a wasteful number, since it uses less digits than its factorization.

167941987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925.

The product of its digits is 762048, while the sum is 52.

The square root of 167941987 is about 12959.2433035266. The cubic root of 167941987 is about 551.7213146831.

It can be divided in two parts, 16794 and 1987, that added together give a palindrome (18781).

The spelling of 167941987 in words is "one hundred sixty-seven million, nine hundred forty-one thousand, nine hundred eighty-seven".