197400 has 96 divisors (see below), whose sum is σ = 714240. Its totient is φ = 44160.

The previous prime is 197389. The next prime is 197419. The reversal of 197400 is 4791.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4177 + ... + 4223.

It is an arithmetic number, because the mean of its divisors is an integer number (7440).

2¹⁹⁷⁴⁰⁰ is an apocalyptic number.

197400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357120).

197400 is an abundant number, since it is smaller than the sum of its proper divisors (516840).

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

197400 is a wasteful number, since it uses less digits than its factorization.

197400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 197400 is about 444.2971978305. The cubic root of 197400 is about 58.2258337622.

The spelling of 197400 in words is "one hundred ninety-seven thousand, four hundred".