816286870 has 16 divisors (see below), whose sum is σ = 1679218848. Its totient is φ = 279869760.

The previous prime is 816286829. The next prime is 816286871. The reversal of 816286870 is 78682618.

It is a self number, because there is not a number n which added to its sum of digits gives 816286870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816286871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5830551 + ... + 5830690.

It is an arithmetic number, because the mean of its divisors is an integer number (104951178).

Almost surely, 2^816286870 is an apocalyptic number.

816286870 is an abundant number, since it is smaller than the sum of its proper divisors (862931978).

816286870 is a wasteful number, since it uses less digits than its factorization.

816286870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11661255.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 816286870 is about 28570.7345022840. The cubic root of 816286870 is about 934.5752386370.

The spelling of 816286870 in words is "eight hundred sixteen million, two hundred eighty-six thousand, eight hundred seventy".