196321623 has 16 divisors (see below), whose sum is σ = 275905920. Its totient is φ = 123827616.

The previous prime is 196321613. The next prime is 196321637. The reversal of 196321623 is 326123691.

It is a de Polignac number, because none of the positive numbers 2^k-196321623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196321613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52161 + ... + 55797.

It is an arithmetic number, because the mean of its divisors is an integer number (17244120).

Almost surely, 2^196321623 is an apocalyptic number.

196321623 is a deficient number, since it is larger than the sum of its proper divisors (79584297).

196321623 is a wasteful number, since it uses less digits than its factorization.

196321623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606.

The product of its digits is 11664, while the sum is 33.

The square root of 196321623 is about 14011.4818274157. The cubic root of 196321623 is about 581.1961274617.

The spelling of 196321623 in words is "one hundred ninety-six million, three hundred twenty-one thousand, six hundred twenty-three".