196593638 has 4 divisors (see below), whose sum is σ = 294890460. Its totient is φ = 98296818.

The previous prime is 196593637. The next prime is 196593643. The reversal of 196593638 is 836395691.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196593637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49148408 + ... + 49148411.

It is an arithmetic number, because the mean of its divisors is an integer number (73722615).

Almost surely, 2^196593638 is an apocalyptic number.

196593638 is a deficient number, since it is larger than the sum of its proper divisors (98296822).

196593638 is an equidigital number, since it uses as much as digits as its factorization.

196593638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98296821.

The product of its digits is 1049760, while the sum is 50.

The square root of 196593638 is about 14021.1853279243. The cubic root of 196593638 is about 581.4644305692.

The spelling of 196593638 in words is "one hundred ninety-six million, five hundred ninety-three thousand, six hundred thirty-eight".