3261996427 has 2 divisors, whose sum is σ = 3261996428. Its totient is φ = 3261996426.

The previous prime is 3261996391. The next prime is 3261996509. The reversal of 3261996427 is 7246991623.

3261996427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3261996427 - 2¹⁵ = 3261963659 is a prime.

It is not a weakly prime, because it can be changed into another prime (3261994427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1630998213 + 1630998214.

It is an arithmetic number, because the mean of its divisors is an integer number (1630998214).

Almost surely, 2^3261996427 is an apocalyptic number.

3261996427 is a deficient number, since it is larger than the sum of its proper divisors (1).

3261996427 is an equidigital number, since it uses as much as digits as its factorization.

3261996427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 49.

The square root of 3261996427 is about 57113.8899655767. The cubic root of 3261996427 is about 1483.0683280261.

The spelling of 3261996427 in words is "three billion, two hundred sixty-one million, nine hundred ninety-six thousand, four hundred twenty-seven".