495278843 has 4 divisors (see below), whose sum is σ = 495465720. Its totient is φ = 495091968.

The previous prime is 495278837. The next prime is 495278869. The reversal of 495278843 is 348872594.

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 495278843 - 2⁴ = 495278827 is a prime.

It is a super-2 number, since 2×495278843² = 490602264646837298, 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 = 495278791 and 495278800.

It is not an unprimeable number, because it can be changed into a prime (495278543) 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, 89405 + ... + 94782.

It is an arithmetic number, because the mean of its divisors is an integer number (123866430).

Almost surely, 2^495278843 is an apocalyptic number.

495278843 is a deficient number, since it is larger than the sum of its proper divisors (186877).

495278843 is a wasteful number, since it uses less digits than its factorization.

495278843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186876.

The product of its digits is 1935360, while the sum is 50.

The square root of 495278843 is about 22254.8611094296. The cubic root of 495278843 is about 791.1944985931.

The spelling of 495278843 in words is "four hundred ninety-five million, two hundred seventy-eight thousand, eight hundred forty-three".