447892243 has 2 divisors, whose sum is σ = 447892244. Its totient is φ = 447892242.

The previous prime is 447892231. The next prime is 447892259. The reversal of 447892243 is 342298744.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447892243 is a prime.

It is a super-2 number, since 2×447892243² = 401214922679142098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 447892243.

It is not a weakly prime, because it can be changed into another prime (447892213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223946121 + 223946122.

It is an arithmetic number, because the mean of its divisors is an integer number (223946122).

Almost surely, 2^447892243 is an apocalyptic number.

447892243 is a deficient number, since it is larger than the sum of its proper divisors (1).

447892243 is an equidigital number, since it uses as much as digits as its factorization.

447892243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 43.

The square root of 447892243 is about 21163.4648155731. The cubic root of 447892243 is about 765.1111194618. Note that the first 5 decimals are identical.

It can be divided in two parts, 4478 and 92243, that added together give a square (96721 = 311²).

The spelling of 447892243 in words is "four hundred forty-seven million, eight hundred ninety-two thousand, two hundred forty-three".