427503449 has 2 divisors, whose sum is σ = 427503450. Its totient is φ = 427503448.

The previous prime is 427503421. The next prime is 427503469. The reversal of 427503449 is 944305724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350625625 + 76877824 = 18725^2 + 8768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427503449 is a prime.

It is not a weakly prime, because it can be changed into another prime (427503409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213751724 + 213751725.

It is an arithmetic number, because the mean of its divisors is an integer number (213751725).

Almost surely, 2^427503449 is an apocalyptic number.

It is an amenable number.

427503449 is a deficient number, since it is larger than the sum of its proper divisors (1).

427503449 is an equidigital number, since it uses as much as digits as its factorization.

427503449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 427503449 is about 20676.1565335533. The cubic root of 427503449 is about 753.3206531702.

The spelling of 427503449 in words is "four hundred twenty-seven million, five hundred three thousand, four hundred forty-nine".