3268147821 has 8 divisors (see below), whose sum is σ = 4418904384. Its totient is φ = 2148078240.

The previous prime is 3268147807. The next prime is 3268147823. The reversal of 3268147821 is 1287418623.

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

It is not a de Polignac number, because 3268147821 - 2⁵ = 3268147789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3268147823) 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, 7671496 + ... + 7671921.

It is an arithmetic number, because the mean of its divisors is an integer number (552363048).

Almost surely, 2^3268147821 is an apocalyptic number.

It is an amenable number.

3268147821 is a deficient number, since it is larger than the sum of its proper divisors (1150756563).

3268147821 is a wasteful number, since it uses less digits than its factorization.

3268147821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15343491.

The product of its digits is 129024, while the sum is 42.

The square root of 3268147821 is about 57167.7165977442. The cubic root of 3268147821 is about 1483.9999874371. Note that the first 4 decimals are identical.

The spelling of 3268147821 in words is "three billion, two hundred sixty-eight million, one hundred forty-seven thousand, eight hundred twenty-one".