99585869 has 2 divisors, whose sum is σ = 99585870. Its totient is φ = 99585868.

The previous prime is 99585853. The next prime is 99585953. The reversal of 99585869 is 96858599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85784644 + 13801225 = 9262^2 + 3715^2 .

It is a cyclic number.

It is not a de Polignac number, because 99585869 - 2⁴ = 99585853 is a prime.

It is a super-2 number, since 2×99585869² = 19834690608970322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99585839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49792934 + 49792935.

It is an arithmetic number, because the mean of its divisors is an integer number (49792935).

Almost surely, 2^99585869 is an apocalyptic number.

It is an amenable number.

99585869 is a deficient number, since it is larger than the sum of its proper divisors (1).

99585869 is an equidigital number, since it uses as much as digits as its factorization.

99585869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6998400, while the sum is 59.

The square root of 99585869 is about 9979.2719674333. The cubic root of 99585869 is about 463.5172548752.

The spelling of 99585869 in words is "ninety-nine million, five hundred eighty-five thousand, eight hundred sixty-nine".