196487668 has 24 divisors (see below), whose sum is σ = 370810440. Its totient is φ = 90562560.

The previous prime is 196487657. The next prime is 196487701. The reversal of 196487668 is 866784691.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16176484 + 180311184 = 4022^2 + 13428^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43668 + ... + 47956.

It is an arithmetic number, because the mean of its divisors is an integer number (15450435).

Almost surely, 2^196487668 is an apocalyptic number.

It is an amenable number.

196487668 is a deficient number, since it is larger than the sum of its proper divisors (174322772).

196487668 is a wasteful number, since it uses less digits than its factorization.

196487668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187 (or 5185 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 196487668 is about 14017.4058941018. The cubic root of 196487668 is about 581.3599360716.

The spelling of 196487668 in words is "one hundred ninety-six million, four hundred eighty-seven thousand, six hundred sixty-eight".