93934890 has 80 divisors (see below), whose sum is σ = 288680832. Its totient is φ = 21469536.

The previous prime is 93934889. The next prime is 93934891. The reversal of 93934890 is 9843939.

It is an interprime number because it is at equal distance from previous prime (93934889) and next prime (93934891).

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

It is not an unprimeable number, because it can be changed into a prime (93934891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2614 + ... + 13953.

Almost surely, 2^93934890 is an apocalyptic number.

93934890 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 93934890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144340416).

93934890 is an abundant number, since it is smaller than the sum of its proper divisors (194745942).

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

93934890 is a wasteful number, since it uses less digits than its factorization.

93934890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16593 (or 16584 counting only the distinct ones).

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

The square root of 93934890 is about 9692.0013413123. The cubic root of 93934890 is about 454.5785898148.

The spelling of 93934890 in words is "ninety-three million, nine hundred thirty-four thousand, eight hundred ninety".