805312034 has 4 divisors (see below), whose sum is σ = 1207968054. Its totient is φ = 402656016.

The previous prime is 805312021. The next prime is 805312043. The reversal of 805312034 is 430213508.

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

It can be written as a sum of positive squares in only one way, i.e., 633780625 + 171531409 = 25175^2 + 13097^2 .

It is a junction number, because it is equal to n+sod(n) for n = 805311994 and 805312012.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 201328007 + ... + 201328010.

Almost surely, 2^805312034 is an apocalyptic number.

805312034 is a deficient number, since it is larger than the sum of its proper divisors (402656020).

805312034 is a wasteful number, since it uses less digits than its factorization.

805312034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402656019.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 805312034 is about 28378.0202621677. The cubic root of 805312034 is about 930.3679254905.

The spelling of 805312034 in words is "eight hundred five million, three hundred twelve thousand, thirty-four".