7270666 has 8 divisors (see below), whose sum is σ = 11744964. Its totient is φ = 3355680.

The previous prime is 7270663. The next prime is 7270693. The reversal of 7270666 is 6660727.

It can be written as a sum of positive squares in 2 ways, for example, as 5880625 + 1390041 = 2425^2 + 1179^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7270661) 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, 139795 + ... + 139846.

Almost surely, 2^7270666 is an apocalyptic number.

7270666 is a deficient number, since it is larger than the sum of its proper divisors (4474298).

7270666 is a wasteful number, since it uses less digits than its factorization.

7270666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279656.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 7270666 is about 2696.4172525779. The cubic root of 7270666 is about 193.7275553605.

The spelling of 7270666 in words is "seven million, two hundred seventy thousand, six hundred sixty-six".