3321421387 has 2 divisors, whose sum is σ = 3321421388. Its totient is φ = 3321421386.

The previous prime is 3321421339. The next prime is 3321421403. The reversal of 3321421387 is 7831241233.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3321421387 is a prime.

It is a super-2 number, since 2×3321421387² = 22063680060042007538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3321424387) 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 as a sum of consecutive naturals, namely, 1660710693 + 1660710694.

It is an arithmetic number, because the mean of its divisors is an integer number (1660710694).

Almost surely, 2^3321421387 is an apocalyptic number.

3321421387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321421387 is an equidigital number, since it uses as much as digits as its factorization.

3321421387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 3321421387 is about 57631.7741094268. The cubic root of 3321421387 is about 1492.0200499178.

The spelling of 3321421387 in words is "three billion, three hundred twenty-one million, four hundred twenty-one thousand, three hundred eighty-seven".