93899840 has 112 divisors (see below), whose sum is σ = 243102384. Its totient is φ = 34406400.

The previous prime is 93899791. The next prime is 93899849. The reversal of 93899840 is 4899839.

It can be written as a sum of positive squares in 8 ways, for example, as 26790976 + 67108864 = 5176^2 + 8192^2 .

It is not an unprimeable number, because it can be changed into a prime (93899849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222830 + ... + 223250.

It is an arithmetic number, because the mean of its divisors is an integer number (2170557).

Almost surely, 2^93899840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 93899840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121551192).

93899840 is an abundant number, since it is smaller than the sum of its proper divisors (149202544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

93899840 is a wasteful number, since it uses less digits than its factorization.

93899840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 93899840 is about 9690.1929805345. The cubic root of 93899840 is about 454.5220436912.

The spelling of 93899840 in words is "ninety-three million, eight hundred ninety-nine thousand, eight hundred forty".