993980 has 24 divisors (see below), whose sum is σ = 2248512. Its totient is φ = 366912.

The previous prime is 993977. The next prime is 993983. The reversal of 993980 is 89399.

It is an interprime number because it is at equal distance from previous prime (993977) and next prime (993983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (93688).

2⁹⁹³⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

993980 is an abundant number, since it is smaller than the sum of its proper divisors (1254532).

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

993980 is a wasteful number, since it uses less digits than its factorization.

993980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845 (or 3843 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 993980 is about 996.9854562630. The cubic root of 993980 is about 99.7989293101.

The spelling of 993980 in words is "nine hundred ninety-three thousand, nine hundred eighty".