197061487 has 6 divisors (see below), whose sum is σ = 229234848. Its totient is φ = 168909804.

The previous prime is 197061463. The next prime is 197061499. The reversal of 197061487 is 784160791.

It is a de Polignac number, because none of the positive numbers 2^k-197061487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197061287) 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, 2010783 + ... + 2010880.

It is an arithmetic number, because the mean of its divisors is an integer number (38205808).

Almost surely, 2^197061487 is an apocalyptic number.

197061487 is a deficient number, since it is larger than the sum of its proper divisors (32173361).

197061487 is an equidigital number, since it uses as much as digits as its factorization.

197061487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021677 (or 4021670 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 197061487 is about 14037.8590604123. The cubic root of 197061487 is about 581.9253170349.

The spelling of 197061487 in words is "one hundred ninety-seven million, sixty-one thousand, four hundred eighty-seven".