197681088 has 168 divisors, whose sum is σ = 588077056. Its totient is φ = 58544640.

The previous prime is 197681087. The next prime is 197681089. The reversal of 197681088 is 880186791.

197681088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (197681087) and next prime (197681089).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197681087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1556481 + ... + 1556607.

Almost surely, 2^197681088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197681088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294038528).

197681088 is an abundant number, since it is smaller than the sum of its proper divisors (390395968).

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

197681088 is a wasteful number, since it uses less digits than its factorization.

197681088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 48.

The square root of 197681088 is about 14059.9106682795. The cubic root of 197681088 is about 582.5345757320.

The spelling of 197681088 in words is "one hundred ninety-seven million, six hundred eighty-one thousand, eighty-eight".