3246161721 has 8 divisors (see below), whose sum is σ = 4721689824. Its totient is φ = 1967370720.

The previous prime is 3246161693. The next prime is 3246161767. The reversal of 3246161721 is 1271616423.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3246161721 - 2⁹ = 3246161209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 98368537 = 3246161721 / (3 + 2 + 4 + 6 + 1 + 6 + 1 + 7 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (3246161771) 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 in 7 ways as a sum of consecutive naturals, for example, 49184236 + ... + 49184301.

It is an arithmetic number, because the mean of its divisors is an integer number (590211228).

Almost surely, 2^3246161721 is an apocalyptic number.

It is an amenable number.

3246161721 is a deficient number, since it is larger than the sum of its proper divisors (1475528103).

3246161721 is a wasteful number, since it uses less digits than its factorization.

3246161721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98368551.

The product of its digits is 12096, while the sum is 33.

The square root of 3246161721 is about 56975.0973759589. The cubic root of 3246161721 is about 1480.6646821135.

The spelling of 3246161721 in words is "three billion, two hundred forty-six million, one hundred sixty-one thousand, seven hundred twenty-one".