7072217 has 4 divisors (see below), whose sum is σ = 7263396. Its totient is φ = 6881040.

The previous prime is 7072193. The next prime is 7072243. The reversal of 7072217 is 7122707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7122707 = 307 ⋅23201.

It can be written as a sum of positive squares in 2 ways, for example, as 6255001 + 817216 = 2501^2 + 904^2 .

It is a cyclic number.

It is not a de Polignac number, because 7072217 - 2¹⁸ = 6810073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7072277) 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, 95534 + ... + 95607.

It is an arithmetic number, because the mean of its divisors is an integer number (1815849).

Almost surely, 2^7072217 is an apocalyptic number.

It is an amenable number.

7072217 is a deficient number, since it is larger than the sum of its proper divisors (191179).

7072217 is a wasteful number, since it uses less digits than its factorization.

7072217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191178.

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 7072217 is about 2659.3640217165. The cubic root of 7072217 is about 191.9487077251.

The spelling of 7072217 in words is "seven million, seventy-two thousand, two hundred seventeen".