427589133409 has 3 divisors (see below), whose sum is σ = 427589787313. Its totient is φ = 427588479506.

The previous prime is 427589133403. The next prime is 427589133451. The reversal of 427589133409 is 904331985724.

The square root of 427589133409 is 653903.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 427589133409 - 2¹⁵ = 427589100641 is a prime.

It is a super-2 number, since 2×427589133409² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427589133409.

It is not an unprimeable number, because it can be changed into a prime (427589133403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 326952 + ... + 980854.

Almost surely, 2^427589133409 is an apocalyptic number.

427589133409 is the 653903-rd square number.

427589133409 is the 326952-nd centered octagonal number.

It is an amenable number.

427589133409 is a deficient number, since it is larger than the sum of its proper divisors (653904).

427589133409 is an frugal number, since it uses more digits than its factorization.

427589133409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307806 (or 653903 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 427589133409 in words is "four hundred twenty-seven billion, five hundred eighty-nine million, one hundred thirty-three thousand, four hundred nine".