99283281 has 8 divisors (see below), whose sum is σ = 140164704. Its totient is φ = 62295360.

The previous prime is 99283273. The next prime is 99283313. The reversal of 99283281 is 18238299.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99283281 - 2³ = 99283273 is a prime.

It is a super-2 number, since 2×99283281² = 19714339772249922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (99283241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973315 + ... + 973416.

It is an arithmetic number, because the mean of its divisors is an integer number (17520588).

Almost surely, 2^99283281 is an apocalyptic number.

It is an amenable number.

99283281 is a deficient number, since it is larger than the sum of its proper divisors (40881423).

99283281 is a wasteful number, since it uses less digits than its factorization.

99283281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946751.

The product of its digits is 62208, while the sum is 42.

The square root of 99283281 is about 9964.0996080930. The cubic root of 99283281 is about 463.0473185486.

The spelling of 99283281 in words is "ninety-nine million, two hundred eighty-three thousand, two hundred eighty-one".