99889073 has 4 divisors (see below), whose sum is σ = 100027200. Its totient is φ = 99750948.

The previous prime is 99889051. The next prime is 99889087. The reversal of 99889073 is 37098899.

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 99889073 - 2¹² = 99884977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99889003) 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, 67973 + ... + 69426.

It is an arithmetic number, because the mean of its divisors is an integer number (25006800).

Almost surely, 2^99889073 is an apocalyptic number.

It is an amenable number.

99889073 is a deficient number, since it is larger than the sum of its proper divisors (138127).

99889073 is a wasteful number, since it uses less digits than its factorization.

99889073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138126.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 99889073 is about 9994.4521110464. The cubic root of 99889073 is about 463.9871940208.

The spelling of 99889073 in words is "ninety-nine million, eight hundred eighty-nine thousand, seventy-three".