993400 has 24 divisors (see below), whose sum is σ = 2310120. Its totient is φ = 397280.

The previous prime is 993397. The next prime is 993401. The reversal of 993400 is 4399.

993400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2284 + ... + 2683.

It is an arithmetic number, because the mean of its divisors is an integer number (96255).

2⁹⁹³⁴⁰⁰ is an apocalyptic number.

It is an amenable number.

993400 is an abundant number, since it is smaller than the sum of its proper divisors (1316720).

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

993400 is a wasteful number, since it uses less digits than its factorization.

993400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4983 (or 4974 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 993400 is about 996.6945369570. The cubic root of 993400 is about 99.7795142175.

Adding to 993400 its reverse (4399), we get a palindrome (997799).

The spelling of 993400 in words is "nine hundred ninety-three thousand, four hundred".