123987802 has 16 divisors (see below), whose sum is σ = 195996672. Its totient is φ = 58709200.

The previous prime is 123987763. The next prime is 123987823. The reversal of 123987802 is 208789321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8698 + ... + 17989.

It is an arithmetic number, because the mean of its divisors is an integer number (12249792).

Almost surely, 2^123987802 is an apocalyptic number.

123987802 is a deficient number, since it is larger than the sum of its proper divisors (72008870).

123987802 is a wasteful number, since it uses less digits than its factorization.

123987802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26813.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 123987802 is about 11134.9810058212. The cubic root of 123987802 is about 498.6467433639.

The spelling of 123987802 in words is "one hundred twenty-three million, nine hundred eighty-seven thousand, eight hundred two".