6249945 has 16 divisors (see below), whose sum is σ = 10769472. Its totient is φ = 3076800.

The previous prime is 6249923. The next prime is 6249949. The reversal of 6249945 is 5499426.

It is not a de Polignac number, because 6249945 - 2⁵ = 6249913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6249949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15831 + ... + 16220.

It is an arithmetic number, because the mean of its divisors is an integer number (673092).

Almost surely, 2^6249945 is an apocalyptic number.

6249945 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6249945 is a deficient number, since it is larger than the sum of its proper divisors (4519527).

6249945 is a wasteful number, since it uses less digits than its factorization.

6249945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32072.

The product of its digits is 77760, while the sum is 39.

The square root of 6249945 is about 2499.9889999758. The cubic root of 6249945 is about 184.2010346058.

The spelling of 6249945 in words is "six million, two hundred forty-nine thousand, nine hundred forty-five".