537599969 has 2 divisors, whose sum is σ = 537599970. Its totient is φ = 537599968.

The previous prime is 537599957. The next prime is 537599971. The reversal of 537599969 is 969995735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535459600 + 2140369 = 23140^2 + 1463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537599969 is a prime.

It is a super-2 number, since 2×537599969² = 578027453337601922, which contains 22 as substring.

Together with 537599971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (537599989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268799984 + 268799985.

It is an arithmetic number, because the mean of its divisors is an integer number (268799985).

Almost surely, 2^537599969 is an apocalyptic number.

It is an amenable number.

537599969 is a deficient number, since it is larger than the sum of its proper divisors (1).

537599969 is an equidigital number, since it uses as much as digits as its factorization.

537599969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20667150, while the sum is 62.

The square root of 537599969 is about 23186.2021254021. The cubic root of 537599969 is about 813.1170698228.

The spelling of 537599969 in words is "five hundred thirty-seven million, five hundred ninety-nine thousand, nine hundred sixty-nine".