7222787 has 16 divisors (see below), whose sum is σ = 8654688. Its totient is φ = 5940480.

The previous prime is 7222781. The next prime is 7222799. The reversal of 7222787 is 7872227.

It is not a de Polignac number, because 7222787 - 2⁴ = 7222771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7222781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7103 + ... + 8055.

It is an arithmetic number, because the mean of its divisors is an integer number (540918).

Almost surely, 2^7222787 is an apocalyptic number.

7222787 is a deficient number, since it is larger than the sum of its proper divisors (1431901).

7222787 is a wasteful number, since it uses less digits than its factorization.

7222787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030.

The product of its digits is 21952, while the sum is 35.

The square root of 7222787 is about 2687.5243254713. The cubic root of 7222787 is about 193.3013717147.

The spelling of 7222787 in words is "seven million, two hundred twenty-two thousand, seven hundred eighty-seven".