805153827 has 4 divisors (see below), whose sum is σ = 1073538440. Its totient is φ = 536769216.

The previous prime is 805153771. The next prime is 805153831. The reversal of 805153827 is 728351508.

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

It is not a de Polignac number, because 805153827 - 2⁶ = 805153763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805153127) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 134192302 + ... + 134192307.

It is an arithmetic number, because the mean of its divisors is an integer number (268384610).

Almost surely, 2^805153827 is an apocalyptic number.

805153827 is a deficient number, since it is larger than the sum of its proper divisors (268384613).

805153827 is a wasteful number, since it uses less digits than its factorization.

805153827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268384612.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 805153827 is about 28375.2326334076. The cubic root of 805153827 is about 930.3069965785.

The spelling of 805153827 in words is "eight hundred five million, one hundred fifty-three thousand, eight hundred twenty-seven".