197287488 has 140 divisors (see below), whose sum is σ = 615909360. Its totient is φ = 62270208.

The previous prime is 197287477. The next prime is 197287501. The reversal of 197287488 is 884782791.

It is a happy number.

197287488 is a `hidden beast` number, since 19 + 72 + 87 + 488 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97495 + ... + 99497.

Almost surely, 2^197287488 is an apocalyptic number.

197287488 is a gapful number since it is divisible by the number (18) 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 197287488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307954680).

197287488 is an abundant number, since it is smaller than the sum of its proper divisors (418621872).

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

197287488 is a wasteful number, since it uses less digits than its factorization.

197287488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046 (or 2027 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 197287488 is about 14045.9064499234. The cubic root of 197287488 is about 582.1476934128.

The spelling of 197287488 in words is "one hundred ninety-seven million, two hundred eighty-seven thousand, four hundred eighty-eight".