196783728 has 20 divisors (see below), whose sum is σ = 508358088. Its totient is φ = 65594560.

The previous prime is 196783711. The next prime is 196783739. The reversal of 196783728 is 827387691.

It is a congruent number.

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, 2049783 + ... + 2049878.

Almost surely, 2^196783728 is an apocalyptic number.

It is an amenable number.

196783728 is an abundant number, since it is smaller than the sum of its proper divisors (311574360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196783728 is a wasteful number, since it uses less digits than its factorization.

196783728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099672 (or 4099666 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 196783728 is about 14027.9623609418. The cubic root of 196783728 is about 581.6517797449.

The spelling of 196783728 in words is "one hundred ninety-six million, seven hundred eighty-three thousand, seven hundred twenty-eight".