6249913 has 2 divisors, whose sum is σ = 6249914. Its totient is φ = 6249912.

The previous prime is 6249907. The next prime is 6249923. The reversal of 6249913 is 3199426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6110784 + 139129 = 2472^2 + 373^2 .

It is a cyclic number.

It is not a de Polignac number, because 6249913 - 2¹³ = 6241721 is a prime.

It is a super-2 number, since 2×6249913² = 78122825015138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6249923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3124956 + 3124957.

It is an arithmetic number, because the mean of its divisors is an integer number (3124957).

Almost surely, 2^6249913 is an apocalyptic number.

It is an amenable number.

6249913 is a deficient number, since it is larger than the sum of its proper divisors (1).

6249913 is an equidigital number, since it uses as much as digits as its factorization.

6249913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 6249913 is about 2499.9825999394. The cubic root of 6249913 is about 184.2007202327.

The spelling of 6249913 in words is "six million, two hundred forty-nine thousand, nine hundred thirteen".