427047193 has 4 divisors (see below), whose sum is σ = 427093200. Its totient is φ = 427001188.

The previous prime is 427047169. The next prime is 427047197. The reversal of 427047193 is 391740724.

It is the 8437-th star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 427047193 - 2²¹ = 424950041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427047197) 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, 3655 + ... + 29452.

It is an arithmetic number, because the mean of its divisors is an integer number (106773300).

Almost surely, 2^427047193 is an apocalyptic number.

It is an amenable number.

427047193 is a deficient number, since it is larger than the sum of its proper divisors (46007).

427047193 is a wasteful number, since it uses less digits than its factorization.

427047193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46006.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 427047193 is about 20665.1202028926. The cubic root of 427047193 is about 753.0525622220.

The spelling of 427047193 in words is "four hundred twenty-seven million, forty-seven thousand, one hundred ninety-three".