816701370 has 64 divisors (see below), whose sum is σ = 2040837120. Its totient is φ = 208977408.

The previous prime is 816701351. The next prime is 816701383. The reversal of 816701370 is 73107618.

It is a super-2 number, since 2×816701370² = 1334002255519753800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75991 + ... + 86069.

It is an arithmetic number, because the mean of its divisors is an integer number (31888080).

Almost surely, 2^816701370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 816701370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1020418560).

816701370 is an abundant number, since it is smaller than the sum of its proper divisors (1224135750).

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

816701370 is a wasteful number, since it uses less digits than its factorization.

816701370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10199.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 816701370 is about 28577.9875078705. The cubic root of 816701370 is about 934.7334003079.

Adding to 816701370 its reverse (73107618), we get a palindrome (889808988).

The spelling of 816701370 in words is "eight hundred sixteen million, seven hundred one thousand, three hundred seventy".