87102389 has 8 divisors (see below), whose sum is σ = 95142432. Its totient is φ = 79082640.

The previous prime is 87102383. The next prime is 87102437. The reversal of 87102389 is 98320178.

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-87102389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87102383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4742 + ... + 14024.

It is an arithmetic number, because the mean of its divisors is an integer number (11892804).

Almost surely, 2^87102389 is an apocalyptic number.

It is an amenable number.

87102389 is a deficient number, since it is larger than the sum of its proper divisors (8040043).

87102389 is a wasteful number, since it uses less digits than its factorization.

87102389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10147.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 87102389 is about 9332.8660656842. The cubic root of 87102389 is about 443.2785218133.

The spelling of 87102389 in words is "eighty-seven million, one hundred two thousand, three hundred eighty-nine".