7228057 has 4 divisors (see below), whose sum is σ = 7239780. Its totient is φ = 7216336.

The previous prime is 7228033. The next prime is 7228093. The reversal of 7228057 is 7508227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1132096 + 6095961 = 1064^2 + 2469^2 .

It is a cyclic number.

It is not a de Polignac number, because 7228057 - 2¹⁵ = 7195289 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

7228057 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7228657) 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, 4882 + ... + 6187.

It is an arithmetic number, because the mean of its divisors is an integer number (1809945).

Almost surely, 2^7228057 is an apocalyptic number.

It is an amenable number.

7228057 is a deficient number, since it is larger than the sum of its proper divisors (11723).

7228057 is a wasteful number, since it uses less digits than its factorization.

7228057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11722.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 7228057 is about 2688.5046029345. The cubic root of 7228057 is about 193.3483734501.

The spelling of 7228057 in words is "seven million, two hundred twenty-eight thousand, fifty-seven".