6249861 has 12 divisors (see below), whose sum is σ = 9052992. Its totient is φ = 4154856.

The previous prime is 6249851. The next prime is 6249871. The reversal of 6249861 is 1689426.

6249861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6249851) and next prime (6249871).

It is not a de Polignac number, because 6249861 - 2¹⁴ = 6233477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6249821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3460 + ... + 4946.

It is an arithmetic number, because the mean of its divisors is an integer number (754416).

Almost surely, 2^6249861 is an apocalyptic number.

It is an amenable number.

6249861 is a deficient number, since it is larger than the sum of its proper divisors (2803131).

6249861 is a wasteful number, since it uses less digits than its factorization.

6249861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960 (or 1957 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 6249861 is about 2499.9721998454. The cubic root of 6249861 is about 184.2002093742.

The spelling of 6249861 in words is "six million, two hundred forty-nine thousand, eight hundred sixty-one".