102840886 has 4 divisors (see below), whose sum is σ = 154261332. Its totient is φ = 51420442.

The previous prime is 102840883. The next prime is 102840887. The reversal of 102840886 is 688048201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102840883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25710220 + ... + 25710223.

It is an arithmetic number, because the mean of its divisors is an integer number (38565333).

Almost surely, 2^102840886 is an apocalyptic number.

102840886 is a deficient number, since it is larger than the sum of its proper divisors (51420446).

102840886 is an equidigital number, since it uses as much as digits as its factorization.

102840886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51420445.

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 102840886 is about 10141.0495512052. The cubic root of 102840886 is about 468.5133134934.

It can be divided in two parts, 1028 and 40886, that added together give a palindrome (41914).

The spelling of 102840886 in words is "one hundred two million, eight hundred forty thousand, eight hundred eighty-six".