6249978 has 24 divisors (see below), whose sum is σ = 15476448. Its totient is φ = 1785672.

The previous prime is 6249973. The next prime is 6249979. The reversal of 6249978 is 8799426.

It is a happy number.

6249978 is nontrivially palindromic in base 5.

It is not an unprimeable number, because it can be changed into a prime (6249973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24676 + ... + 24927.

It is an arithmetic number, because the mean of its divisors is an integer number (644852).

Almost surely, 2^6249978 is an apocalyptic number.

6249978 is an abundant number, since it is smaller than the sum of its proper divisors (9226470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6249978 is a wasteful number, since it uses less digits than its factorization.

6249978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49618 (or 49615 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 6249978 is about 2499.9955999961. The cubic root of 6249978 is about 184.2013588019.

It can be divided in two parts, 6249 and 978, that added together give a palindrome (7227).

The spelling of 6249978 in words is "six million, two hundred forty-nine thousand, nine hundred seventy-eight".