805426953 has 4 divisors (see below), whose sum is σ = 1073902608. Its totient is φ = 536951300.

The previous prime is 805426933. The next prime is 805426957. The reversal of 805426953 is 359624508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 805426953 - 2⁹ = 805426441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (805426957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134237823 + ... + 134237828.

It is an arithmetic number, because the mean of its divisors is an integer number (268475652).

Almost surely, 2^805426953 is an apocalyptic number.

It is an amenable number.

805426953 is a deficient number, since it is larger than the sum of its proper divisors (268475655).

805426953 is a wasteful number, since it uses less digits than its factorization.

805426953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268475654.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 805426953 is about 28380.0449788227. The cubic root of 805426953 is about 930.4121782612.

The spelling of 805426953 in words is "eight hundred five million, four hundred twenty-six thousand, nine hundred fifty-three".