196723457 has 16 divisors (see below), whose sum is σ = 230497152. Its totient is φ = 164419200.

The previous prime is 196723441. The next prime is 196723481. The reversal of 196723457 is 754327691.

It is a cyclic number.

It is not a de Polignac number, because 196723457 - 2⁴ = 196723441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196723157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45293 + ... + 49445.

It is an arithmetic number, because the mean of its divisors is an integer number (14406072).

Almost surely, 2^196723457 is an apocalyptic number.

It is an amenable number.

196723457 is a deficient number, since it is larger than the sum of its proper divisors (33773695).

196723457 is a wasteful number, since it uses less digits than its factorization.

196723457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328.

The product of its digits is 317520, while the sum is 44.

The square root of 196723457 is about 14025.8139514254. The cubic root of 196723457 is about 581.5923908336.

The spelling of 196723457 in words is "one hundred ninety-six million, seven hundred twenty-three thousand, four hundred fifty-seven".