7263666 has 12 divisors (see below), whose sum is σ = 15737982. Its totient is φ = 2421216.

The previous prime is 7263637. The next prime is 7263673. The reversal of 7263666 is 6663627.

It can be written as a sum of positive squares in only one way, i.e., 4968441 + 2295225 = 2229^2 + 1515^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7263666.

It is a congruent number.

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, 201751 + ... + 201786.

Almost surely, 2^7263666 is an apocalyptic number.

7263666 is an abundant number, since it is smaller than the sum of its proper divisors (8474316).

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

7263666 is a wasteful number, since it uses less digits than its factorization.

7263666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403545 (or 403542 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 7263666 is about 2695.1189213094. The cubic root of 7263666 is about 193.6653635189.

The spelling of 7263666 in words is "seven million, two hundred sixty-three thousand, six hundred sixty-six".