7066397 has 6 divisors (see below), whose sum is σ = 7651962. Its totient is φ = 6522672.

The previous prime is 7066393. The next prime is 7066399. The reversal of 7066397 is 7936607.

It can be written as a sum of positive squares in 3 ways, for example, as 337561 + 6728836 = 581^2 + 2594^2 .

It is not a de Polignac number, because 7066397 - 2² = 7066393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7066397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7066393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20738 + ... + 21075.

It is an arithmetic number, because the mean of its divisors is an integer number (1275327).

Almost surely, 2^7066397 is an apocalyptic number.

It is an amenable number.

7066397 is a deficient number, since it is larger than the sum of its proper divisors (585565).

7066397 is a wasteful number, since it uses less digits than its factorization.

7066397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41839 (or 41826 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 7066397 is about 2658.2695499140. The cubic root of 7066397 is about 191.8960392778.

The spelling of 7066397 in words is "seven million, sixty-six thousand, three hundred ninety-seven".