6901889 has 2 divisors, whose sum is σ = 6901890. Its totient is φ = 6901888.

The previous prime is 6901859. The next prime is 6901891. The reversal of 6901889 is 9881096.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5326864 + 1575025 = 2308^2 + 1255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6901889 is a prime.

Together with 6901891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6901849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3450944 + 3450945.

It is an arithmetic number, because the mean of its divisors is an integer number (3450945).

Almost surely, 2^6901889 is an apocalyptic number.

It is an amenable number.

6901889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6901889 is an equidigital number, since it uses as much as digits as its factorization.

6901889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 6901889 is about 2627.1446477117. The cubic root of 6901889 is about 190.3951977374.

The spelling of 6901889 in words is "six million, nine hundred one thousand, eight hundred eighty-nine".