427548881 has 2 divisors, whose sum is σ = 427548882. Its totient is φ = 427548880.

The previous prime is 427548859. The next prime is 427548883. The reversal of 427548881 is 188845724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247747600 + 179801281 = 15740^2 + 13409^2 .

It is a cyclic number.

It is not a de Polignac number, because 427548881 - 2¹⁸ = 427286737 is a prime.

It is a super-2 number, since 2×427548881² = 365596091288704322, which contains 22 as substring.

Together with 427548883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427548883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213774440 + 213774441.

It is an arithmetic number, because the mean of its divisors is an integer number (213774441).

Almost surely, 2^427548881 is an apocalyptic number.

It is an amenable number.

427548881 is a deficient number, since it is larger than the sum of its proper divisors (1).

427548881 is an equidigital number, since it uses as much as digits as its factorization.

427548881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 573440, while the sum is 47.

The square root of 427548881 is about 20677.2551611668. The cubic root of 427548881 is about 753.3473380634.

The spelling of 427548881 in words is "four hundred twenty-seven million, five hundred forty-eight thousand, eight hundred eighty-one".