816193035 has 48 divisors (see below), whose sum is σ = 1711958976. Its totient is φ = 351166464.

The previous prime is 816193009. The next prime is 816193039. The reversal of 816193035 is 530391618.

It is a happy number.

816193035 is a `hidden beast` number, since 8 + 1 + 619 + 3 + 0 + 35 = 666.

It is not a de Polignac number, because 816193035 - 2¹¹ = 816190987 is a prime.

It is a super-2 number, since 2×816193035² = 1332342140765022450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (816193039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70854 + ... + 81563.

It is an arithmetic number, because the mean of its divisors is an integer number (35665812).

Almost surely, 2^816193035 is an apocalyptic number.

816193035 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

816193035 is an abundant number, since it is smaller than the sum of its proper divisors (895765941).

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

816193035 is a wasteful number, since it uses less digits than its factorization.

816193035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152452 (or 152449 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 816193035 is about 28569.0923026966. The cubic root of 816193035 is about 934.5394263790.

The spelling of 816193035 in words is "eight hundred sixteen million, one hundred ninety-three thousand, thirty-five".