6249921 has 8 divisors (see below), whose sum is σ = 8527200. Its totient is φ = 4069632.

The previous prime is 6249913. The next prime is 6249923. The reversal of 6249921 is 1299426.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6249921 - 2³ = 6249913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6249923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24096 + ... + 24353.

It is an arithmetic number, because the mean of its divisors is an integer number (1065900).

Almost surely, 2^6249921 is an apocalyptic number.

It is an amenable number.

6249921 is a deficient number, since it is larger than the sum of its proper divisors (2277279).

6249921 is a wasteful number, since it uses less digits than its factorization.

6249921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48495.

The product of its digits is 7776, while the sum is 33.

The square root of 6249921 is about 2499.9841999501. The cubic root of 6249921 is about 184.2007988261.

The spelling of 6249921 in words is "six million, two hundred forty-nine thousand, nine hundred twenty-one".