196327491 has 4 divisors (see below), whose sum is σ = 261769992. Its totient is φ = 130884992.

The previous prime is 196327489. The next prime is 196327499. The reversal of 196327491 is 194723691.

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

It is a cyclic number.

It is not a de Polignac number, because 196327491 - 2¹ = 196327489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196327499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32721246 + ... + 32721251.

It is an arithmetic number, because the mean of its divisors is an integer number (65442498).

Almost surely, 2^196327491 is an apocalyptic number.

196327491 is a deficient number, since it is larger than the sum of its proper divisors (65442501).

196327491 is an equidigital number, since it uses as much as digits as its factorization.

196327491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65442500.

The product of its digits is 81648, while the sum is 42.

The square root of 196327491 is about 14011.6912255445. The cubic root of 196327491 is about 581.2019180021.

The spelling of 196327491 in words is "one hundred ninety-six million, three hundred twenty-seven thousand, four hundred ninety-one".