427193569 has 4 divisors (see below), whose sum is σ = 466029360. Its totient is φ = 388357780.

The previous prime is 427193567. The next prime is 427193573. The reversal of 427193569 is 965391724.

It is a happy 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.

It is a cyclic number.

It is not a de Polignac number, because 427193569 - 2¹ = 427193567 is a prime.

It is a super-2 number, since 2×427193569² = 364988690789915522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427193567) 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, 19417879 + ... + 19417900.

It is an arithmetic number, because the mean of its divisors is an integer number (116507340).

Almost surely, 2^427193569 is an apocalyptic number.

It is an amenable number.

427193569 is a deficient number, since it is larger than the sum of its proper divisors (38835791).

427193569 is a wasteful number, since it uses less digits than its factorization.

427193569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38835790.

The product of its digits is 408240, while the sum is 46.

The square root of 427193569 is about 20668.6615193147. The cubic root of 427193569 is about 753.1385919254.

The spelling of 427193569 in words is "four hundred twenty-seven million, one hundred ninety-three thousand, five hundred sixty-nine".