427271497 has 2 divisors, whose sum is σ = 427271498. Its totient is φ = 427271496.

The previous prime is 427271473. The next prime is 427271519. The reversal of 427271497 is 794172724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369754441 + 57517056 = 19229^2 + 7584^2 .

It is a cyclic number.

It is not a de Polignac number, because 427271497 - 2¹⁵ = 427238729 is a prime.

It is not a weakly prime, because it can be changed into another prime (427221497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213635748 + 213635749.

It is an arithmetic number, because the mean of its divisors is an integer number (213635749).

Almost surely, 2^427271497 is an apocalyptic number.

It is an amenable number.

427271497 is a deficient number, since it is larger than the sum of its proper divisors (1).

427271497 is an equidigital number, since it uses as much as digits as its factorization.

427271497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 43.

The square root of 427271497 is about 20670.5466062221. The cubic root of 427271497 is about 753.1843846059.

The spelling of 427271497 in words is "four hundred twenty-seven million, two hundred seventy-one thousand, four hundred ninety-seven".