196531886 has 4 divisors (see below), whose sum is σ = 294797832. Its totient is φ = 98265942.

The previous prime is 196531879. The next prime is 196531903. The reversal of 196531886 is 688135691.

196531886 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 688135691 = 167 ⋅4120573.

It is a self number, because there is not a number n which added to its sum of digits gives 196531886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49132970 + ... + 49132973.

It is an arithmetic number, because the mean of its divisors is an integer number (73699458).

Almost surely, 2^196531886 is an apocalyptic number.

196531886 is a deficient number, since it is larger than the sum of its proper divisors (98265946).

196531886 is an equidigital number, since it uses as much as digits as its factorization.

196531886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98265945.

The product of its digits is 311040, while the sum is 47.

The square root of 196531886 is about 14018.9830586958. The cubic root of 196531886 is about 581.4035429568.

The spelling of 196531886 in words is "one hundred ninety-six million, five hundred thirty-one thousand, eight hundred eighty-six".