816648670 has 8 divisors (see below), whose sum is σ = 1469967624. Its totient is φ = 326659464.

The previous prime is 816648667. The next prime is 816648673. The reversal of 816648670 is 76846618.

It is a happy number.

816648670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (816648667) and next prime (816648673).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 816648670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816648673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40832424 + ... + 40832443.

It is an arithmetic number, because the mean of its divisors is an integer number (183745953).

Almost surely, 2^816648670 is an apocalyptic number.

816648670 is a deficient number, since it is larger than the sum of its proper divisors (653318954).

816648670 is a wasteful number, since it uses less digits than its factorization.

816648670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81664874.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 816648670 is about 28577.0654546614. The cubic root of 816648670 is about 934.7132944236.

The spelling of 816648670 in words is "eight hundred sixteen million, six hundred forty-eight thousand, six hundred seventy".