102696985 has 4 divisors (see below), whose sum is σ = 123236388. Its totient is φ = 82157584.

The previous prime is 102696973. The next prime is 102696989. The reversal of 102696985 is 589696201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 79067664 + 23629321 = 8892^2 + 4861^2 .

It is a cyclic number.

It is not a de Polignac number, because 102696985 - 2¹¹ = 102694937 is a prime.

It is a super-3 number, since 3×102696985³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102696989) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10269694 + ... + 10269703.

It is an arithmetic number, because the mean of its divisors is an integer number (30809097).

Almost surely, 2^102696985 is an apocalyptic number.

It is an amenable number.

102696985 is a deficient number, since it is larger than the sum of its proper divisors (20539403).

102696985 is an equidigital number, since it uses as much as digits as its factorization.

102696985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20539402.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 102696985 is about 10133.9520918544. The cubic root of 102696985 is about 468.2946877205.

The spelling of 102696985 in words is "one hundred two million, six hundred ninety-six thousand, nine hundred eighty-five".