3321728867 has 2 divisors, whose sum is σ = 3321728868. Its totient is φ = 3321728866.

The previous prime is 3321728843. The next prime is 3321728899. The reversal of 3321728867 is 7688271233.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3321728867 - 2²⁰ = 3320680291 is a prime.

It is a super-2 number, since 2×3321728867² = 22067765331722207378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3321728467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660864433 + 1660864434.

It is an arithmetic number, because the mean of its divisors is an integer number (1660864434).

Almost surely, 2^3321728867 is an apocalyptic number.

3321728867 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321728867 is an equidigital number, since it uses as much as digits as its factorization.

3321728867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 47.

The square root of 3321728867 is about 57634.4416733606. The cubic root of 3321728867 is about 1492.0660896616.

The spelling of 3321728867 in words is "three billion, three hundred twenty-one million, seven hundred twenty-eight thousand, eight hundred sixty-seven".