99282989 has 4 divisors (see below), whose sum is σ = 106920156. Its totient is φ = 91645824.

The previous prime is 99282983. The next prime is 99282991. The reversal of 99282989 is 98928299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98928299 = 3389 ⋅29191.

It can be written as a sum of positive squares in 2 ways, for example, as 5522500 + 93760489 = 2350^2 + 9683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99282989 is a prime.

It is a super-2 number, since 2×99282989² = 19714223809548242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99282983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818564 + ... + 3818589.

It is an arithmetic number, because the mean of its divisors is an integer number (26730039).

Almost surely, 2^99282989 is an apocalyptic number.

It is an amenable number.

99282989 is a deficient number, since it is larger than the sum of its proper divisors (7637167).

99282989 is a wasteful number, since it uses less digits than its factorization.

99282989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7637166.

The product of its digits is 1679616, while the sum is 56.

The square root of 99282989 is about 9964.0849554789. The cubic root of 99282989 is about 463.0468645952.

The spelling of 99282989 in words is "ninety-nine million, two hundred eighty-two thousand, nine hundred eighty-nine".