93984390 has 24 divisors (see below), whose sum is σ = 244359648. Its totient is φ = 25062480.

The previous prime is 93984383. The next prime is 93984391. The reversal of 93984390 is 9348939.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93984391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522046 + ... + 522225.

It is an arithmetic number, because the mean of its divisors is an integer number (10181652).

Almost surely, 2^93984390 is an apocalyptic number.

93984390 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

93984390 is an abundant number, since it is smaller than the sum of its proper divisors (150375258).

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

93984390 is a wasteful number, since it uses less digits than its factorization.

93984390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044284 (or 1044281 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 93984390 is about 9694.5546571258. The cubic root of 93984390 is about 454.6584241513.

The spelling of 93984390 in words is "ninety-three million, nine hundred eighty-four thousand, three hundred ninety".