4997569 has 2 divisors, whose sum is σ = 4997570. Its totient is φ = 4997568.

The previous prime is 4997567. The next prime is 4997579. The reversal of 4997569 is 9657994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4928400 + 69169 = 2220^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 4997569 - 2¹ = 4997567 is a prime.

It is a super-2 number, since 2×4997569² = 49951391819522, which contains 22 as substring.

Together with 4997567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4997563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498784 + 2498785.

It is an arithmetic number, because the mean of its divisors is an integer number (2498785).

Almost surely, 2^4997569 is an apocalyptic number.

It is an amenable number.

4997569 is a deficient number, since it is larger than the sum of its proper divisors (1).

4997569 is an equidigital number, since it uses as much as digits as its factorization.

4997569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 49.

The square root of 4997569 is about 2235.5243232853. The cubic root of 4997569 is about 170.9698771649.

The spelling of 4997569 in words is "four million, nine hundred ninety-seven thousand, five hundred sixty-nine".