455242847 has 4 divisors (see below), whose sum is σ = 482021856. Its totient is φ = 428463840.

The previous prime is 455242789. The next prime is 455242859. The reversal of 455242847 is 748242554.

It is a happy number.

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 455242847 - 2¹⁰ = 455241823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455242897) 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, 13389479 + ... + 13389512.

It is an arithmetic number, because the mean of its divisors is an integer number (120505464).

Almost surely, 2^455242847 is an apocalyptic number.

455242847 is a deficient number, since it is larger than the sum of its proper divisors (26779009).

455242847 is a wasteful number, since it uses less digits than its factorization.

455242847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26779008.

The product of its digits is 358400, while the sum is 41.

The square root of 455242847 is about 21336.4206698312. The cubic root of 455242847 is about 769.2739808697.

The spelling of 455242847 in words is "four hundred fifty-five million, two hundred forty-two thousand, eight hundred forty-seven".