805426954 has 4 divisors (see below), whose sum is σ = 1208140434. Its totient is φ = 402713476.

The previous prime is 805426933. The next prime is 805426957. The reversal of 805426954 is 459624508.

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., 625250025 + 180176929 = 25005^2 + 13423^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 805426954.

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 as a sum of consecutive naturals, namely, 201356737 + ... + 201356740.

Almost surely, 2^805426954 is an apocalyptic number.

805426954 is a deficient number, since it is larger than the sum of its proper divisors (402713480).

805426954 is a wasteful number, since it uses less digits than its factorization.

805426954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402713479.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 805426954 is about 28380.0449964407. The cubic root of 805426954 is about 930.4121786462.

The spelling of 805426954 in words is "eight hundred five million, four hundred twenty-six thousand, nine hundred fifty-four".