806367869 has 4 divisors (see below), whose sum is σ = 826035420. Its totient is φ = 786700320.

The previous prime is 806367841. The next prime is 806367883. The reversal of 806367869 is 968763608.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46648900 + 759718969 = 6830^2 + 27563^2 .

It is a cyclic number.

It is not a de Polignac number, because 806367869 - 2²⁸ = 537932413 is a prime.

It is a super-2 number, since 2×806367869² = 1300458280311202322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 806367869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806367829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9833714 + ... + 9833795.

It is an arithmetic number, because the mean of its divisors is an integer number (206508855).

Almost surely, 2^806367869 is an apocalyptic number.

It is an amenable number.

806367869 is a deficient number, since it is larger than the sum of its proper divisors (19667551).

806367869 is a wasteful number, since it uses less digits than its factorization.

806367869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19667550.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 806367869 is about 28396.6172105059. The cubic root of 806367869 is about 930.7743460203.

The spelling of 806367869 in words is "eight hundred six million, three hundred sixty-seven thousand, eight hundred sixty-nine".