6194989 has 2 divisors, whose sum is σ = 6194990. Its totient is φ = 6194988.

The previous prime is 6194983. The next prime is 6195001. The reversal of 6194989 is 9894916.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6086089 + 108900 = 2467^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 6194989 - 2⁷ = 6194861 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6194983) 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 as a sum of consecutive naturals, namely, 3097494 + 3097495.

It is an arithmetic number, because the mean of its divisors is an integer number (3097495).

Almost surely, 2^6194989 is an apocalyptic number.

It is an amenable number.

6194989 is a deficient number, since it is larger than the sum of its proper divisors (1).

6194989 is an equidigital number, since it uses as much as digits as its factorization.

6194989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 46.

The square root of 6194989 is about 2488.9734831854. The cubic root of 6194989 is about 183.6595488619.

The spelling of 6194989 in words is "six million, one hundred ninety-four thousand, nine hundred eighty-nine".