93998820 has 96 divisors (see below), whose sum is σ = 275014656. Its totient is φ = 23961600.

The previous prime is 93998819. The next prime is 93998837. The reversal of 93998820 is 2889939.

It is a super-2 number, since 2×93998820² = 17671556322784800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 93998820.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180160 + ... + 180680.

It is an arithmetic number, because the mean of its divisors is an integer number (2864736).

Almost surely, 2^93998820 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 93998820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137507328).

93998820 is an abundant number, since it is smaller than the sum of its proper divisors (181015836).

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

93998820 is a wasteful number, since it uses less digits than its factorization.

93998820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 93998820 is about 9695.2988607882. The cubic root of 93998820 is about 454.6816917929.

The spelling of 93998820 in words is "ninety-three million, nine hundred ninety-eight thousand, eight hundred twenty".