167253987 has 4 divisors (see below), whose sum is σ = 223005320. Its totient is φ = 111502656.

The previous prime is 167253929. The next prime is 167254001. The reversal of 167253987 is 789352761.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 167253987 - 2⁷ = 167253859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167253917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27875662 + ... + 27875667.

It is an arithmetic number, because the mean of its divisors is an integer number (55751330).

Almost surely, 2^167253987 is an apocalyptic number.

167253987 is a deficient number, since it is larger than the sum of its proper divisors (55751333).

167253987 is an equidigital number, since it uses as much as digits as its factorization.

167253987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55751332.

The product of its digits is 635040, while the sum is 48.

The square root of 167253987 is about 12932.6713017845. The cubic root of 167253987 is about 550.9668799804.

The spelling of 167253987 in words is "one hundred sixty-seven million, two hundred fifty-three thousand, nine hundred eighty-seven".