427753849 has 2 divisors, whose sum is σ = 427753850. Its totient is φ = 427753848.

The previous prime is 427753811. The next prime is 427753871. The reversal of 427753849 is 948357724.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 340144249 + 87609600 = 18443^2 + 9360^2 .

It is a cyclic number.

It is not a de Polignac number, because 427753849 - 2¹¹ = 427751801 is a prime.

It is not a weakly prime, because it can be changed into another prime (427753889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213876924 + 213876925.

It is an arithmetic number, because the mean of its divisors is an integer number (213876925).

Almost surely, 2^427753849 is an apocalyptic number.

It is an amenable number.

427753849 is a deficient number, since it is larger than the sum of its proper divisors (1).

427753849 is an equidigital number, since it uses as much as digits as its factorization.

427753849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 49.

The square root of 427753849 is about 20682.2109311360. The cubic root of 427753849 is about 753.4677043618.

The spelling of 427753849 in words is "four hundred twenty-seven million, seven hundred fifty-three thousand, eight hundred forty-nine".