3195820427 has 4 divisors (see below), whose sum is σ = 3203790456. Its totient is φ = 3187850400.

The previous prime is 3195820421. The next prime is 3195820451. The reversal of 3195820427 is 7240285913.

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 3195820427 - 2⁸ = 3195820171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3195820421) 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 in 3 ways as a sum of consecutive naturals, for example, 3984413 + ... + 3985214.

It is an arithmetic number, because the mean of its divisors is an integer number (800947614).

Almost surely, 2^3195820427 is an apocalyptic number.

3195820427 is a deficient number, since it is larger than the sum of its proper divisors (7970029).

3195820427 is an equidigital number, since it uses as much as digits as its factorization.

3195820427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7970028.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 3195820427 is about 56531.5878690843. The cubic root of 3195820427 is about 1472.9707499906.

The spelling of 3195820427 in words is "three billion, one hundred ninety-five million, eight hundred twenty thousand, four hundred twenty-seven".