6953421 has 4 divisors (see below), whose sum is σ = 9271232. Its totient is φ = 4635612.

The previous prime is 6953413. The next prime is 6953423. The reversal of 6953421 is 1243596.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6953421 - 2³ = 6953413 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6953423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158901 + ... + 1158906.

It is an arithmetic number, because the mean of its divisors is an integer number (2317808).

Almost surely, 2^6953421 is an apocalyptic number.

It is an amenable number.

6953421 is a deficient number, since it is larger than the sum of its proper divisors (2317811).

6953421 is a wasteful number, since it uses less digits than its factorization.

6953421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317810.

The product of its digits is 6480, while the sum is 30.

The square root of 6953421 is about 2636.9340151016. The cubic root of 6953421 is about 190.8678764256.

The spelling of 6953421 in words is "six million, nine hundred fifty-three thousand, four hundred twenty-one".