196687738 has 8 divisors (see below), whose sum is σ = 317726388. Its totient is φ = 90778944.

The previous prime is 196687727. The next prime is 196687741. The reversal of 196687738 is 837786691.

196687738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 196084009 + 603729 = 14003^2 + 777^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3782431 + ... + 3782482.

Almost surely, 2^196687738 is an apocalyptic number.

196687738 is a deficient number, since it is larger than the sum of its proper divisors (121038650).

196687738 is a wasteful number, since it uses less digits than its factorization.

196687738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7564928.

The product of its digits is 3048192, while the sum is 55.

The square root of 196687738 is about 14024.5405628848. The cubic root of 196687738 is about 581.5571888698.

The spelling of 196687738 in words is "one hundred ninety-six million, six hundred eighty-seven thousand, seven hundred thirty-eight".