170988087 has 16 divisors (see below), whose sum is σ = 243570560. Its totient is φ = 106378272.

The previous prime is 170988053. The next prime is 170988107. The reversal of 170988087 is 780889071.

It is not a de Polignac number, because 170988087 - 2¹⁸ = 170725943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170988047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18568 + ... + 26205.

It is an arithmetic number, because the mean of its divisors is an integer number (15223160).

Almost surely, 2^170988087 is an apocalyptic number.

170988087 is a deficient number, since it is larger than the sum of its proper divisors (72582473).

170988087 is a wasteful number, since it uses less digits than its factorization.

170988087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44862.

The product of its (nonzero) digits is 225792, while the sum is 48.

The square root of 170988087 is about 13076.2413177488. The cubic root of 170988087 is about 555.0370204995.

The spelling of 170988087 in words is "one hundred seventy million, nine hundred eighty-eight thousand, eighty-seven".