102881687 has 4 divisors (see below), whose sum is σ = 103248096. Its totient is φ = 102515280.

The previous prime is 102881651. The next prime is 102881693. The reversal of 102881687 is 786188201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102881687 - 2⁸ = 102881431 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 (102881617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182783 + ... + 183344.

It is an arithmetic number, because the mean of its divisors is an integer number (25812024).

Almost surely, 2^102881687 is an apocalyptic number.

102881687 is a deficient number, since it is larger than the sum of its proper divisors (366409).

102881687 is an equidigital number, since it uses as much as digits as its factorization.

102881687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366408.

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 102881687 is about 10143.0610271259. The cubic root of 102881687 is about 468.5752644839.

The spelling of 102881687 in words is "one hundred two million, eight hundred eighty-one thousand, six hundred eighty-seven".