6949221 has 4 divisors (see below), whose sum is σ = 9265632. Its totient is φ = 4632812.

The previous prime is 6949219. The next prime is 6949223. The reversal of 6949221 is 1229496.

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 an interprime number because it is at equal distance from previous prime (6949219) and next prime (6949223).

It is a cyclic number.

It is not a de Polignac number, because 6949221 - 2¹ = 6949219 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6949223) 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, 1158201 + ... + 1158206.

It is an arithmetic number, because the mean of its divisors is an integer number (2316408).

Almost surely, 2^6949221 is an apocalyptic number.

It is an amenable number.

6949221 is a deficient number, since it is larger than the sum of its proper divisors (2316411).

6949221 is a wasteful number, since it uses less digits than its factorization.

6949221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316410.

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

The square root of 6949221 is about 2636.1375153812. The cubic root of 6949221 is about 190.8294393964.

The spelling of 6949221 in words is "six million, nine hundred forty-nine thousand, two hundred twenty-one".