197487 has 6 divisors (see below), whose sum is σ = 285272. Its totient is φ = 131652.

The previous prime is 197479. The next prime is 197507. The reversal of 197487 is 784791.

It is not a de Polignac number, because 197487 - 2³ = 197479 is a prime.

It is a super-2 number, since 2×197487² = 78002230338, which contains 22 as substring.

It is a Duffinian number.

197487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10963 + ... + 10980.

2¹⁹⁷⁴⁸⁷ is an apocalyptic number.

197487 is a deficient number, since it is larger than the sum of its proper divisors (87785).

197487 is a wasteful number, since it uses less digits than its factorization.

197487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21949 (or 21946 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 197487 is about 444.3950944824. The cubic root of 197487 is about 58.2343864530.

The spelling of 197487 in words is "one hundred ninety-seven thousand, four hundred eighty-seven".