89199281 has 4 divisors (see below), whose sum is σ = 93894000. Its totient is φ = 84504564.

The previous prime is 89199277. The next prime is 89199283. The reversal of 89199281 is 18299198.

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: 18299198 = 2 ⋅9149599.

It is a cyclic number.

It is not a de Polignac number, because 89199281 - 2² = 89199277 is a prime.

It is a super-2 number, since 2×89199281² = 15913023461833922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89199283) 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, 2347331 + ... + 2347368.

It is an arithmetic number, because the mean of its divisors is an integer number (23473500).

Almost surely, 2^89199281 is an apocalyptic number.

It is an amenable number.

89199281 is a deficient number, since it is larger than the sum of its proper divisors (4694719).

89199281 is a wasteful number, since it uses less digits than its factorization.

89199281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694718.

The product of its digits is 93312, while the sum is 47.

The square root of 89199281 is about 9444.5370982383. The cubic root of 89199281 is about 446.8074966810.

The spelling of 89199281 in words is "eighty-nine million, one hundred ninety-nine thousand, two hundred eighty-one".