89198849 has 4 divisors (see below), whose sum is σ = 89225136. Its totient is φ = 89172564.

The previous prime is 89198839. The next prime is 89198861. The reversal of 89198849 is 94889198.

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: 94889198 = 2 ⋅47444599.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89198849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 89198794 and 89198803.

It is not an unprimeable number, because it can be changed into a prime (89198839) 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, 7139 + ... + 15144.

It is an arithmetic number, because the mean of its divisors is an integer number (22306284).

Almost surely, 2^89198849 is an apocalyptic number.

It is an amenable number.

89198849 is a deficient number, since it is larger than the sum of its proper divisors (26287).

89198849 is a wasteful number, since it uses less digits than its factorization.

89198849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26286.

The product of its digits is 1492992, while the sum is 56.

The square root of 89198849 is about 9444.5142278468. The cubic root of 89198849 is about 446.8067753704.

The spelling of 89198849 in words is "eighty-nine million, one hundred ninety-eight thousand, eight hundred forty-nine".