805453389 has 24 divisors (see below), whose sum is σ = 1299337312. Its totient is φ = 495661680.

The previous prime is 805453381. The next prime is 805453391. The reversal of 805453389 is 983354508.

It is a happy number.

It is not a de Polignac number, because 805453389 - 2³ = 805453381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805453381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124327 + ... + 130644.

Almost surely, 2^805453389 is an apocalyptic number.

It is an amenable number.

805453389 is a deficient number, since it is larger than the sum of its proper divisors (493883923).

805453389 is a wasteful number, since it uses less digits than its factorization.

805453389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254999 (or 254987 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 805453389 is about 28380.5107247914. The cubic root of 805453389 is about 930.4223575858.

The spelling of 805453389 in words is "eight hundred five million, four hundred fifty-three thousand, three hundred eighty-nine".