800045431 has 4 divisors (see below), whose sum is σ = 800146312. Its totient is φ = 799944552.

The previous prime is 800045429. The next prime is 800045447. The reversal of 800045431 is 134540008.

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

It is a cyclic number.

It is not a de Polignac number, because 800045431 - 2¹ = 800045429 is a prime.

It is a super-2 number, since 2×800045431² = 1280145383327951522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 800045396 and 800045405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800045461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37425 + ... + 54778.

It is an arithmetic number, because the mean of its divisors is an integer number (200036578).

Almost surely, 2^800045431 is an apocalyptic number.

800045431 is a deficient number, since it is larger than the sum of its proper divisors (100881).

800045431 is an equidigital number, since it uses as much as digits as its factorization.

800045431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100880.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 800045431 is about 28285.0743502647. The cubic root of 800045431 is about 928.3353390584.

Adding to 800045431 its reverse (134540008), we get a palindrome (934585439).

The spelling of 800045431 in words is "eight hundred million, forty-five thousand, four hundred thirty-one".