8161087 has 6 divisors (see below), whose sum is σ = 8970584. Its totient is φ = 7419060.

The previous prime is 8161081. The next prime is 8161121. The reversal of 8161087 is 7801618.

It is not a de Polignac number, because 8161087 - 2⁷ = 8160959 is a prime.

It is a Duffinian number.

8161087 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8161081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33603 + ... + 33844.

Almost surely, 2^8161087 is an apocalyptic number.

8161087 is a deficient number, since it is larger than the sum of its proper divisors (809497).

8161087 is a wasteful number, since it uses less digits than its factorization.

8161087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67469 (or 67458 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 8161087 is about 2856.7616281377. The cubic root of 8161087 is about 201.3334810485. Note that the first 3 decimals are identical.

The spelling of 8161087 in words is "eight million, one hundred sixty-one thousand, eighty-seven".