7213449 has 4 divisors (see below), whose sum is σ = 9617936. Its totient is φ = 4808964.

The previous prime is 7213441. The next prime is 7213469. The reversal of 7213449 is 9443127.

It is a happy number.

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 7213449 - 2³ = 7213441 is a prime.

It is a Duffinian number.

7213449 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7213441) 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, 1202239 + ... + 1202244.

It is an arithmetic number, because the mean of its divisors is an integer number (2404484).

Almost surely, 2^7213449 is an apocalyptic number.

It is an amenable number.

7213449 is a deficient number, since it is larger than the sum of its proper divisors (2404487).

7213449 is a wasteful number, since it uses less digits than its factorization.

7213449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404486.

The product of its digits is 6048, while the sum is 30.

The square root of 7213449 is about 2685.7864769933. The cubic root of 7213449 is about 193.2180323862.

The spelling of 7213449 in words is "seven million, two hundred thirteen thousand, four hundred forty-nine".