3204785655 has 80 divisors (see below), whose sum is σ = 5839827840. Its totient is φ = 1681247232.

The previous prime is 3204785581. The next prime is 3204785671. The reversal of 3204785655 is 5565874023.

It is not a de Polignac number, because 3204785655 - 2¹³ = 3204777463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3204785655.

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 10937689 + ... + 10937981.

It is an arithmetic number, because the mean of its divisors is an integer number (72997848).

Almost surely, 2^3204785655 is an apocalyptic number.

3204785655 is a deficient number, since it is larger than the sum of its proper divisors (2635042185).

3204785655 is a wasteful number, since it uses less digits than its factorization.

3204785655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The square root of 3204785655 is about 56610.8263055752. The cubic root of 3204785655 is about 1474.3468378790.

The spelling of 3204785655 in words is "three billion, two hundred four million, seven hundred eighty-five thousand, six hundred fifty-five".