3275394821 has 8 divisors (see below), whose sum is σ = 3426413400. Its totient is φ = 3126914560.

The previous prime is 3275394803. The next prime is 3275394827. The reversal of 3275394821 is 1284935723.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 820192321 + 2455202500 = 28639^2 + 49550^2 .

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

It is not a de Polignac number, because 3275394821 - 2¹⁸ = 3275132677 is a prime.

It is a super-2 number, since 2×3275394821² = 21456422466867244082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3275394827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631940 + ... + 637101.

It is an arithmetic number, because the mean of its divisors is an integer number (428301675).

Almost surely, 2^3275394821 is an apocalyptic number.

It is an amenable number.

3275394821 is a deficient number, since it is larger than the sum of its proper divisors (151018579).

3275394821 is a wasteful number, since it uses less digits than its factorization.

3275394821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269159.

The product of its digits is 362880, while the sum is 44.

The square root of 3275394821 is about 57231.0651744313. The cubic root of 3275394821 is about 1485.0960831466.

The spelling of 3275394821 in words is "three billion, two hundred seventy-five million, three hundred ninety-four thousand, eight hundred twenty-one".