102986785 has 16 divisors (see below), whose sum is σ = 135198720. Its totient is φ = 74688640.

The previous prime is 102986761. The next prime is 102986803. The reversal of 102986785 is 587689201.

It is not a de Polignac number, because 102986785 - 2⁵ = 102986753 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18621 + ... + 23509.

It is an arithmetic number, because the mean of its divisors is an integer number (8449920).

Almost surely, 2^102986785 is an apocalyptic number.

It is an amenable number.

102986785 is a deficient number, since it is larger than the sum of its proper divisors (32211935).

102986785 is a wasteful number, since it uses less digits than its factorization.

102986785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 102986785 is about 10148.2404878875. The cubic root of 102986785 is about 468.7347666753.

The spelling of 102986785 in words is "one hundred two million, nine hundred eighty-six thousand, seven hundred eighty-five".