812601086 has 16 divisors (see below), whose sum is σ = 1387525248. Its totient is φ = 353304600.

The previous prime is 812601043. The next prime is 812601091. The reversal of 812601086 is 680106218.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802460 + ... + 803471.

It is an arithmetic number, because the mean of its divisors is an integer number (86720328).

Almost surely, 2^812601086 is an apocalyptic number.

812601086 is a deficient number, since it is larger than the sum of its proper divisors (574924162).

812601086 is a wasteful number, since it uses less digits than its factorization.

812601086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605967.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 812601086 is about 28506.1587380692. The cubic root of 812601086 is about 933.1664855096.

The spelling of 812601086 in words is "eight hundred twelve million, six hundred one thousand, eighty-six".