7870266 has 12 divisors (see below), whose sum is σ = 17052282. Its totient is φ = 2623416.

The previous prime is 7870243. The next prime is 7870277. The reversal of 7870266 is 6620787.

7870266 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7535025 + 335241 = 2745^2 + 579^2 .

It is a d-powerful number, because it can be written as 7² + 8⁷ + 7⁸ + 0 + 2¹³ + 6² + 6² .

It is a self number, because there is not a number n which added to its sum of digits gives 7870266.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218601 + ... + 218636.

Almost surely, 2^7870266 is an apocalyptic number.

7870266 is an abundant number, since it is smaller than the sum of its proper divisors (9182016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7870266 is a wasteful number, since it uses less digits than its factorization.

7870266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437245 (or 437242 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 7870266 is about 2805.3994368004. The cubic root of 7870266 is about 198.9129860400.

The spelling of 7870266 in words is "seven million, eight hundred seventy thousand, two hundred sixty-six".