3285404781 has 4 divisors (see below), whose sum is σ = 4380539712. Its totient is φ = 2190269852.

The previous prime is 3285404777. The next prime is 3285404807. The reversal of 3285404781 is 1874045823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3285404781 - 2² = 3285404777 is a prime.

It is a super-2 number, since 2×3285404781² = 21587769150035315922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3285404701) 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 3 ways as a sum of consecutive naturals, for example, 547567461 + ... + 547567466.

It is an arithmetic number, because the mean of its divisors is an integer number (1095134928).

Almost surely, 2^3285404781 is an apocalyptic number.

It is an amenable number.

3285404781 is a deficient number, since it is larger than the sum of its proper divisors (1095134931).

3285404781 is a wasteful number, since it uses less digits than its factorization.

3285404781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095134930.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 3285404781 is about 57318.4506158357. The cubic root of 3285404781 is about 1486.6074158844.

The spelling of 3285404781 in words is "three billion, two hundred eighty-five million, four hundred four thousand, seven hundred eighty-one".