427331573 has 2 divisors, whose sum is σ = 427331574. Its totient is φ = 427331572.

The previous prime is 427331521. The next prime is 427331587. The reversal of 427331573 is 375133724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230827249 + 196504324 = 15193^2 + 14018^2 .

It is a cyclic number.

It is not a de Polignac number, because 427331573 - 2¹² = 427327477 is a prime.

It is a super-2 number, since 2×427331573² = 365224546565308658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427331173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213665786 + 213665787.

It is an arithmetic number, because the mean of its divisors is an integer number (213665787).

Almost surely, 2^427331573 is an apocalyptic number.

It is an amenable number.

427331573 is a deficient number, since it is larger than the sum of its proper divisors (1).

427331573 is an equidigital number, since it uses as much as digits as its factorization.

427331573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 35.

The square root of 427331573 is about 20671.9997339396. Note that the first 3 decimals coincide. The cubic root of 427331573 is about 753.2196831494.

The spelling of 427331573 in words is "four hundred twenty-seven million, three hundred thirty-one thousand, five hundred seventy-three".