816987050 has 48 divisors (see below), whose sum is σ = 1689079392. Its totient is φ = 291470400.

The previous prime is 816987007. The next prime is 816987053. The reversal of 816987050 is 50789618.

It is a happy number.

816987050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 816986992 and 816987010.

It is not an unprimeable number, because it can be changed into a prime (816987053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15137 + ... + 43163.

It is an arithmetic number, because the mean of its divisors is an integer number (35189154).

Almost surely, 2^816987050 is an apocalyptic number.

816987050 is an abundant number, since it is smaller than the sum of its proper divisors (872092342).

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

816987050 is a wasteful number, since it uses less digits than its factorization.

816987050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28103 (or 28098 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 816987050 is about 28582.9853234402. The cubic root of 816987050 is about 934.8423767007.

The spelling of 816987050 in words is "eight hundred sixteen million, nine hundred eighty-seven thousand, fifty".