7223949 has 6 divisors (see below), whose sum is σ = 10434606. Its totient is φ = 4815960.

The previous prime is 7223941. The next prime is 7223959. The reversal of 7223949 is 9493227.

It can be written as a sum of positive squares in only one way, i.e., 5673924 + 1550025 = 2382^2 + 1245^2 .

It is not a de Polignac number, because 7223949 - 2³ = 7223941 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7223941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401322 + ... + 401339.

It is an arithmetic number, because the mean of its divisors is an integer number (1739101).

Almost surely, 2^7223949 is an apocalyptic number.

It is an amenable number.

7223949 is a deficient number, since it is larger than the sum of its proper divisors (3210657).

7223949 is a wasteful number, since it uses less digits than its factorization.

7223949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802667 (or 802664 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 7223949 is about 2687.7405008669. The cubic root of 7223949 is about 193.3117372495.

The spelling of 7223949 in words is "seven million, two hundred twenty-three thousand, nine hundred forty-nine".