102999768 has 32 divisors (see below), whose sum is σ = 259868400. Its totient is φ = 34017408.

The previous prime is 102999761. The next prime is 102999791. The reversal of 102999768 is 867999201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102999768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102999761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17071 + ... + 22302.

Almost surely, 2^102999768 is an apocalyptic number.

It is an amenable number.

102999768 is an abundant number, since it is smaller than the sum of its proper divisors (156868632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102999768 is a wasteful number, since it uses less digits than its factorization.

102999768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39491 (or 39487 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 102999768 is about 10148.8801352662. The cubic root of 102999768 is about 468.7544628197.

The spelling of 102999768 in words is "one hundred two million, nine hundred ninety-nine thousand, seven hundred sixty-eight".