427457273 has 4 divisors (see below), whose sum is σ = 427500288. Its totient is φ = 427414260.

The previous prime is 427457257. The next prime is 427457287. The reversal of 427457273 is 372754724.

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 427457273 - 2⁴ = 427457257 is a prime.

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 427457273.

It is not an unprimeable number, because it can be changed into a prime (427457213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868 + ... + 29298.

It is an arithmetic number, because the mean of its divisors is an integer number (106875072).

Almost surely, 2^427457273 is an apocalyptic number.

It is an amenable number.

427457273 is a deficient number, since it is larger than the sum of its proper divisors (43015).

427457273 is a wasteful number, since it uses less digits than its factorization.

427457273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43014.

The product of its digits is 329280, while the sum is 41.

The square root of 427457273 is about 20675.0398548588. The cubic root of 427457273 is about 753.2935293446.

The spelling of 427457273 in words is "four hundred twenty-seven million, four hundred fifty-seven thousand, two hundred seventy-three".