899281 has 4 divisors (see below), whose sum is σ = 904000. Its totient is φ = 894564.

The previous prime is 899273. The next prime is 899291. The reversal of 899281 is 182998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182998 = 2 ⋅91499.

It is a cyclic number.

It is not a de Polignac number, because 899281 - 2³ = 899273 is a prime.

It is a super-2 number, since 2×899281² = 1617412633922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 899281.

It is not an unprimeable number, because it can be changed into a prime (899221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2061 + ... + 2458.

It is an arithmetic number, because the mean of its divisors is an integer number (226000).

2⁸⁹⁹²⁸¹ is an apocalyptic number.

It is an amenable number.

899281 is a deficient number, since it is larger than the sum of its proper divisors (4719).

899281 is a wasteful number, since it uses less digits than its factorization.

899281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4718.

The product of its digits is 10368, while the sum is 37.

The square root of 899281 is about 948.3042760633. The cubic root of 899281 is about 96.5232209862.

The spelling of 899281 in words is "eight hundred ninety-nine thousand, two hundred eighty-one".