6904081 has 2 divisors, whose sum is σ = 6904082. Its totient is φ = 6904080.

The previous prime is 6904067. The next prime is 6904097. The reversal of 6904081 is 1804096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6890625 + 13456 = 2625^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 6904081 - 2¹¹ = 6902033 is a prime.

It is a super-2 number, since 2×6904081² = 95332668909122, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6904181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3452040 + 3452041.

It is an arithmetic number, because the mean of its divisors is an integer number (3452041).

Almost surely, 2^6904081 is an apocalyptic number.

It is an amenable number.

6904081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6904081 is an equidigital number, since it uses as much as digits as its factorization.

6904081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 6904081 is about 2627.5617975606. The cubic root of 6904081 is about 190.4153517416.

The spelling of 6904081 in words is "six million, nine hundred four thousand, eighty-one".