810061085 has 8 divisors (see below), whose sum is σ = 975947616. Its totient is φ = 645466000.

The previous prime is 810061079. The next prime is 810061097. The reversal of 810061085 is 580160018.

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

It is not a de Polignac number, because 810061085 - 2⁴ = 810061069 is a prime.

It is a super-2 number, since 2×810061085² = 1312397922862754450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321479 + ... + 323988.

It is an arithmetic number, because the mean of its divisors is an integer number (121993452).

Almost surely, 2^810061085 is an apocalyptic number.

It is an amenable number.

810061085 is a deficient number, since it is larger than the sum of its proper divisors (165886531).

810061085 is a wasteful number, since it uses less digits than its factorization.

810061085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645723.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 810061085 is about 28461.5720753440. The cubic root of 810061085 is about 932.1931839499.

The spelling of 810061085 in words is "eight hundred ten million, sixty-one thousand, eighty-five".