170987627 has 2 divisors, whose sum is σ = 170987628. Its totient is φ = 170987626.

The previous prime is 170987617. The next prime is 170987633. The reversal of 170987627 is 726789071.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 170987627 - 2⁴ = 170987611 is a prime.

It is a super-2 number, since 2×170987627² = 58473537174182258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (170987617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85493813 + 85493814.

It is an arithmetic number, because the mean of its divisors is an integer number (85493814).

Almost surely, 2^170987627 is an apocalyptic number.

170987627 is a deficient number, since it is larger than the sum of its proper divisors (1).

170987627 is an equidigital number, since it uses as much as digits as its factorization.

170987627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 170987627 is about 13076.2237285846. The cubic root of 170987627 is about 555.0365227703.

The spelling of 170987627 in words is "one hundred seventy million, nine hundred eighty-seven thousand, six hundred twenty-seven".