93628889 has 4 divisors (see below), whose sum is σ = 93845556. Its totient is φ = 93412224.

The previous prime is 93628879. The next prime is 93628891. The reversal of 93628889 is 98882639.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16540489 + 77088400 = 4067^2 + 8780^2 .

It is a cyclic number.

It is not a de Polignac number, because 93628889 - 2¹² = 93624793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 93628889.

It is not an unprimeable number, because it can be changed into a prime (93628859) 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, 107684 + ... + 108549.

It is an arithmetic number, because the mean of its divisors is an integer number (23461389).

Almost surely, 2^93628889 is an apocalyptic number.

It is an amenable number.

93628889 is a deficient number, since it is larger than the sum of its proper divisors (216667).

93628889 is a wasteful number, since it uses less digits than its factorization.

93628889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216666.

The product of its digits is 1492992, while the sum is 53.

The square root of 93628889 is about 9676.2021992102. The cubic root of 93628889 is about 454.0844432058.

The spelling of 93628889 in words is "ninety-three million, six hundred twenty-eight thousand, eight hundred eighty-nine".