7222015 has 8 divisors (see below), whose sum is σ = 8965440. Its totient is φ = 5578272.

The previous prime is 7222009. The next prime is 7222021. The reversal of 7222015 is 5102227.

7222015 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7222009) and next prime (7222021).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7222015 - 2⁵ = 7221983 is a prime.

7222015 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7221983 and 7222001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24759 + ... + 25048.

It is an arithmetic number, because the mean of its divisors is an integer number (1120680).

Almost surely, 2^7222015 is an apocalyptic number.

7222015 is a deficient number, since it is larger than the sum of its proper divisors (1743425).

7222015 is a wasteful number, since it uses less digits than its factorization.

7222015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49841.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 7222015 is about 2687.3806950263. The cubic root of 7222015 is about 193.2944845313.

The spelling of 7222015 in words is "seven million, two hundred twenty-two thousand, fifteen".