102984187 has 4 divisors (see below), whose sum is σ = 103011480. Its totient is φ = 102956896.

The previous prime is 102984157. The next prime is 102984197. The reversal of 102984187 is 781489201.

It is a happy number.

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 102984187 - 2¹⁹ = 102459899 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102984157) 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, 6862 + ... + 15907.

It is an arithmetic number, because the mean of its divisors is an integer number (25752870).

Almost surely, 2^102984187 is an apocalyptic number.

102984187 is a deficient number, since it is larger than the sum of its proper divisors (27293).

102984187 is an equidigital number, since it uses as much as digits as its factorization.

102984187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27292.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 102984187 is about 10148.1124845953. The cubic root of 102984187 is about 468.7308251238.

The spelling of 102984187 in words is "one hundred two million, nine hundred eighty-four thousand, one hundred eighty-seven".