3321640037 has 2 divisors, whose sum is σ = 3321640038. Its totient is φ = 3321640036.

The previous prime is 3321640027. The next prime is 3321640103. The reversal of 3321640037 is 7300461233.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1776285316 + 1545354721 = 42146^2 + 39311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3321640037 is a prime.

It is a super-2 number, since 2×3321640037² = 22066585070802722738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3321639991 and 3321640009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3321640027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660820018 + 1660820019.

It is an arithmetic number, because the mean of its divisors is an integer number (1660820019).

Almost surely, 2^3321640037 is an apocalyptic number.

It is an amenable number.

3321640037 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321640037 is an equidigital number, since it uses as much as digits as its factorization.

3321640037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 3321640037 is about 57633.6710352551. The cubic root of 3321640037 is about 1492.0527892170.

The spelling of 3321640037 in words is "three billion, three hundred twenty-one million, six hundred forty thousand, thirty-seven".