6258649 has 2 divisors, whose sum is σ = 6258650. Its totient is φ = 6258648.

The previous prime is 6258647. The next prime is 6258653. The reversal of 6258649 is 9468526.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6250000 + 8649 = 2500^2 + 93^2 .

It is a cyclic number.

It is not a de Polignac number, because 6258649 - 2¹ = 6258647 is a prime.

Together with 6258647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6258647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3129324 + 3129325.

It is an arithmetic number, because the mean of its divisors is an integer number (3129325).

Almost surely, 2^6258649 is an apocalyptic number.

It is an amenable number.

6258649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6258649 is an equidigital number, since it uses as much as digits as its factorization.

6258649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 6258649 is about 2501.7292019721. The cubic root of 6258649 is about 184.2865042703.

It can be divided in two parts, 625 and 8649, that multiplied together give a square (5405625 = 2325²).

The spelling of 6258649 in words is "six million, two hundred fifty-eight thousand, six hundred forty-nine".