3904067961 has 6 divisors (see below), whose sum is σ = 5639209290. Its totient is φ = 2602711968.

The previous prime is 3904067941. The next prime is 3904067971. The reversal of 3904067961 is 1697604093.

It can be written as a sum of positive squares in only one way, i.e., 2647719936 + 1256348025 = 51456^2 + 35445^2 .

It is not a de Polignac number, because 3904067961 - 2²⁶ = 3836959097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3904067941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216892656 + ... + 216892673.

It is an arithmetic number, because the mean of its divisors is an integer number (939868215).

Almost surely, 2^3904067961 is an apocalyptic number.

It is an amenable number.

3904067961 is a deficient number, since it is larger than the sum of its proper divisors (1735141329).

3904067961 is a wasteful number, since it uses less digits than its factorization.

3904067961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433785335 (or 433785332 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 3904067961 is about 62482.5412495363. The cubic root of 3904067961 is about 1574.6080100828.

The spelling of 3904067961 in words is "three billion, nine hundred four million, sixty-seven thousand, nine hundred sixty-one".