99486889 has 4 divisors (see below), whose sum is σ = 99642256. Its totient is φ = 99331524.

The previous prime is 99486859. The next prime is 99486899. The reversal of 99486889 is 98868499.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 99486889 - 2¹¹ = 99484841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99486859) 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, 76719 + ... + 78004.

It is an arithmetic number, because the mean of its divisors is an integer number (24910564).

It is a Poulet number, since it divides 2^99486888-1.

Almost surely, 2^99486889 is an apocalyptic number.

It is an amenable number.

99486889 is a deficient number, since it is larger than the sum of its proper divisors (155367).

99486889 is a wasteful number, since it uses less digits than its factorization.

99486889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155366.

The product of its digits is 8957952, while the sum is 61.

The square root of 99486889 is about 9974.3114549326. The cubic root of 99486889 is about 463.3636382136.

The spelling of 99486889 in words is "ninety-nine million, four hundred eighty-six thousand, eight hundred eighty-nine".