7223636 has 12 divisors (see below), whose sum is σ = 14447328. Its totient is φ = 3095832.

The previous prime is 7223627. The next prime is 7223641. The reversal of 7223636 is 6363227.

7223636 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7223599 and 7223608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128966 + ... + 129021.

It is an arithmetic number, because the mean of its divisors is an integer number (1203944).

Almost surely, 2^7223636 is an apocalyptic number.

It is an amenable number.

7223636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7223636 is a wasteful number, since it uses less digits than its factorization.

7223636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257998 (or 257996 counting only the distinct ones).

The product of its digits is 9072, while the sum is 29.

The square root of 7223636 is about 2687.6822728887. The cubic root of 7223636 is about 193.3089452656.

The spelling of 7223636 in words is "seven million, two hundred twenty-three thousand, six hundred thirty-six".