816115470 has 32 divisors (see below), whose sum is σ = 1959441408. Its totient is φ = 217545888.

The previous prime is 816115457. The next prime is 816115483. The reversal of 816115470 is 74511618.

It is a happy number.

816115470 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 (816115457) and next prime (816115483).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126667 + ... + 132953.

It is an arithmetic number, because the mean of its divisors is an integer number (61232544).

Almost surely, 2^816115470 is an apocalyptic number.

816115470 is an abundant number, since it is smaller than the sum of its proper divisors (1143325938).

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

816115470 is a wasteful number, since it uses less digits than its factorization.

816115470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10624.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 816115470 is about 28567.7347719416. The cubic root of 816115470 is about 934.5098215168.

The spelling of 816115470 in words is "eight hundred sixteen million, one hundred fifteen thousand, four hundred seventy".