3904505121 has 8 divisors (see below), whose sum is σ = 5679280224. Its totient is φ = 2366366720.

The previous prime is 3904505057. The next prime is 3904505123. The reversal of 3904505121 is 1215054093.

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

It is a cyclic number.

It is not a de Polignac number, because 3904505121 - 2⁶ = 3904505057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3904505123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59159136 + ... + 59159201.

It is an arithmetic number, because the mean of its divisors is an integer number (709910028).

Almost surely, 2^3904505121 is an apocalyptic number.

It is an amenable number.

3904505121 is a deficient number, since it is larger than the sum of its proper divisors (1774775103).

3904505121 is a wasteful number, since it uses less digits than its factorization.

3904505121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118318351.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 3904505121 is about 62486.0394088152. The cubic root of 3904505121 is about 1574.6667804008. Note that the first 3 decimals are identical.

The spelling of 3904505121 in words is "three billion, nine hundred four million, five hundred five thousand, one hundred twenty-one".