6245989 has 2 divisors, whose sum is σ = 6245990. Its totient is φ = 6245988.

The previous prime is 6245969. The next prime is 6246017. The reversal of 6245989 is 9895426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4884100 + 1361889 = 2210^2 + 1167^2 .

It is a cyclic number.

It is not a de Polignac number, because 6245989 - 2⁵ = 6245957 is a prime.

It is an Ulam number.

6245989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6245909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3122994 + 3122995.

It is an arithmetic number, because the mean of its divisors is an integer number (3122995).

Almost surely, 2^6245989 is an apocalyptic number.

It is an amenable number.

6245989 is a deficient number, since it is larger than the sum of its proper divisors (1).

6245989 is an equidigital number, since it uses as much as digits as its factorization.

6245989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 6245989 is about 2499.1976712537. The cubic root of 6245989 is about 184.1621620987.

The spelling of 6245989 in words is "six million, two hundred forty-five thousand, nine hundred eighty-nine".