565297387 has 2 divisors, whose sum is σ = 565297388. Its totient is φ = 565297386.

The previous prime is 565297351. The next prime is 565297391. The reversal of 565297387 is 783792565.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565297387 is a prime.

It is a super-2 number, since 2×565297387² = 639122271498055538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (565291387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282648693 + 282648694.

It is an arithmetic number, because the mean of its divisors is an integer number (282648694).

Almost surely, 2^565297387 is an apocalyptic number.

565297387 is a deficient number, since it is larger than the sum of its proper divisors (1).

565297387 is an equidigital number, since it uses as much as digits as its factorization.

565297387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 52.

The square root of 565297387 is about 23775.9834076322. The cubic root of 565297387 is about 826.8479601696.

The spelling of 565297387 in words is "five hundred sixty-five million, two hundred ninety-seven thousand, three hundred eighty-seven".