197395872 has 24 divisors (see below), whose sum is σ = 518164416. Its totient is φ = 65798592.

The previous prime is 197395831. The next prime is 197395901. The reversal of 197395872 is 278593791.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028008 + ... + 1028199.

It is an arithmetic number, because the mean of its divisors is an integer number (21590184).

Almost surely, 2^197395872 is an apocalyptic number.

197395872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197395872 is an abundant number, since it is smaller than the sum of its proper divisors (320768544).

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

197395872 is a wasteful number, since it uses less digits than its factorization.

197395872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056220 (or 2056212 counting only the distinct ones).

The product of its digits is 952560, while the sum is 51.

The square root of 197395872 is about 14049.7641261339. The cubic root of 197395872 is about 582.2542788929.

The spelling of 197395872 in words is "one hundred ninety-seven million, three hundred ninety-five thousand, eight hundred seventy-two".