102969899 has 4 divisors (see below), whose sum is σ = 103458120. Its totient is φ = 102481680.

The previous prime is 102969887. The next prime is 102969917. The reversal of 102969899 is 998969201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102969899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102969899.

It is not an unprimeable number, because it can be changed into a prime (102969829) 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, 243794 + ... + 244215.

It is an arithmetic number, because the mean of its divisors is an integer number (25864530).

Almost surely, 2^102969899 is an apocalyptic number.

102969899 is a deficient number, since it is larger than the sum of its proper divisors (488221).

102969899 is an equidigital number, since it uses as much as digits as its factorization.

102969899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488220.

The product of its (nonzero) digits is 629856, while the sum is 53.

The square root of 102969899 is about 10147.4084868995. The cubic root of 102969899 is about 468.7091469226.

The spelling of 102969899 in words is "one hundred two million, nine hundred sixty-nine thousand, eight hundred ninety-nine".