6924421 has 8 divisors (see below), whose sum is σ = 7976960. Its totient is φ = 5887728.

The previous prime is 6924413. The next prime is 6924427. The reversal of 6924421 is 1244296.

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

It is not a de Polignac number, because 6924421 - 2³ = 6924413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6924421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6924427) 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, 3006 + ... + 4783.

It is an arithmetic number, because the mean of its divisors is an integer number (997120).

Almost surely, 2^6924421 is an apocalyptic number.

It is an amenable number.

6924421 is a deficient number, since it is larger than the sum of its proper divisors (1052539).

6924421 is a wasteful number, since it uses less digits than its factorization.

6924421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7923.

The product of its digits is 3456, while the sum is 28.

The square root of 6924421 is about 2631.4294594383. The cubic root of 6924421 is about 190.6021615925.

The spelling of 6924421 in words is "six million, nine hundred twenty-four thousand, four hundred twenty-one".