816087104 has 56 divisors (see below), whose sum is σ = 1931261568. Its totient is φ = 334540800.

The previous prime is 816087101. The next prime is 816087113. The reversal of 816087104 is 401780618.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×816087104² = 1331996322630213632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (816087101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29297 + ... + 49904.

Almost surely, 2^816087104 is an apocalyptic number.

It is an amenable number.

816087104 is an abundant number, since it is smaller than the sum of its proper divisors (1115174464).

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

816087104 is a wasteful number, since it uses less digits than its factorization.

816087104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79243 (or 79233 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 816087104 is about 28567.2382984425. The cubic root of 816087104 is about 934.4989943672.

The spelling of 816087104 in words is "eight hundred sixteen million, eighty-seven thousand, one hundred four".