427660297 has 2 divisors, whose sum is σ = 427660298. Its totient is φ = 427660296.

The previous prime is 427660271. The next prime is 427660309. The reversal of 427660297 is 792066724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309372921 + 118287376 = 17589^2 + 10876^2 .

It is a cyclic number.

It is not a de Polignac number, because 427660297 - 2⁷ = 427660169 is a prime.

It is not a weakly prime, because it can be changed into another prime (427660267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213830148 + 213830149.

It is an arithmetic number, because the mean of its divisors is an integer number (213830149).

Almost surely, 2^427660297 is an apocalyptic number.

It is an amenable number.

427660297 is a deficient number, since it is larger than the sum of its proper divisors (1).

427660297 is an equidigital number, since it uses as much as digits as its factorization.

427660297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 427660297 is about 20679.9491537093. The cubic root of 427660297 is about 753.4127712500.

The spelling of 427660297 in words is "four hundred twenty-seven million, six hundred sixty thousand, two hundred ninety-seven".