102587989 has 8 divisors (see below), whose sum is σ = 117800768. Its totient is φ = 87514560.

The previous prime is 102587983. The next prime is 102587999. The reversal of 102587989 is 989785201.

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

It is not a de Polignac number, because 102587989 - 2⁵ = 102587957 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 (102587983) 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, 33252 + ... + 36205.

It is an arithmetic number, because the mean of its divisors is an integer number (14725096).

Almost surely, 2^102587989 is an apocalyptic number.

It is an amenable number.

102587989 is a deficient number, since it is larger than the sum of its proper divisors (15212779).

102587989 is an equidigital number, since it uses as much as digits as its factorization.

102587989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69675.

The product of its (nonzero) digits is 362880, while the sum is 49.

The square root of 102587989 is about 10128.5729004633. The cubic root of 102587989 is about 468.1289564152.

The spelling of 102587989 in words is "one hundred two million, five hundred eighty-seven thousand, nine hundred eighty-nine".