3326393721 has 32 divisors (see below), whose sum is σ = 5211095040. Its totient is φ = 1847537856.

The previous prime is 3326393717. The next prime is 3326393729. The reversal of 3326393721 is 1273936233.

It is not a de Polignac number, because 3326393721 - 2² = 3326393717 is a prime.

It is a super-2 number, since 2×3326393721² = 22129790374216451682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3326393721.

It is not an unprimeable number, because it can be changed into a prime (3326393729) 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 in 31 ways as a sum of consecutive naturals, for example, 1153960 + ... + 1156838.

It is an arithmetic number, because the mean of its divisors is an integer number (162846720).

Almost surely, 2^3326393721 is an apocalyptic number.

It is an amenable number.

3326393721 is a deficient number, since it is larger than the sum of its proper divisors (1884701319).

3326393721 is a wasteful number, since it uses less digits than its factorization.

3326393721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413.

The product of its digits is 122472, while the sum is 39.

The square root of 3326393721 is about 57674.8968009480. The cubic root of 3326393721 is about 1492.7642215759.

The spelling of 3326393721 in words is "three billion, three hundred twenty-six million, three hundred ninety-three thousand, seven hundred twenty-one".