3904887281 has 8 divisors (see below), whose sum is σ = 3951290304. Its totient is φ = 3858647760.

The previous prime is 3904887269. The next prime is 3904887293. The reversal of 3904887281 is 1827884093.

3904887281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3904887269) and next prime (3904887293).

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 3904887281 - 2¹⁰ = 3904886257 is a prime.

It is a super-2 number, since 2×3904887281² = 30496289354631145922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3904887221) 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, 7511 + ... + 88691.

It is an arithmetic number, because the mean of its divisors is an integer number (493911288).

Almost surely, 2^3904887281 is an apocalyptic number.

It is an amenable number.

3904887281 is a deficient number, since it is larger than the sum of its proper divisors (46403023).

3904887281 is a wasteful number, since it uses less digits than its factorization.

3904887281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81751.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 3904887281 is about 62489.0972970485. The cubic root of 3904887281 is about 1574.7181531105.

The spelling of 3904887281 in words is "three billion, nine hundred four million, eight hundred eighty-seven thousand, two hundred eighty-one".