102887999 has 8 divisors (see below), whose sum is σ = 104991552. Its totient is φ = 100790560.

The previous prime is 102887989. The next prime is 102888001. The reversal of 102887999 is 999788201.

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

It is a cyclic number.

It is not a de Polignac number, because 102887999 - 2¹⁶ = 102822463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102887999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102887989) 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, 48842 + ... + 50904.

It is an arithmetic number, because the mean of its divisors is an integer number (13123944).

Almost surely, 2^102887999 is an apocalyptic number.

102887999 is a deficient number, since it is larger than the sum of its proper divisors (2103553).

102887999 is an equidigital number, since it uses as much as digits as its factorization.

102887999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057.

The product of its (nonzero) digits is 653184, while the sum is 53.

The square root of 102887999 is about 10143.3721710287. The cubic root of 102887999 is about 468.5848469687.

The spelling of 102887999 in words is "one hundred two million, eight hundred eighty-seven thousand, nine hundred ninety-nine".