7661223 has 10 divisors (see below), whose sum is σ = 11444664. Its totient is φ = 5107428.

The previous prime is 7661221. The next prime is 7661233. The reversal of 7661223 is 3221667.

It is a happy number.

It is not a de Polignac number, because 7661223 - 2¹ = 7661221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661221) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 47211 + ... + 47372.

Almost surely, 2^7661223 is an apocalyptic number.

7661223 is a deficient number, since it is larger than the sum of its proper divisors (3783441).

7661223 is an equidigital number, since it uses as much as digits as its factorization.

7661223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94595 (or 94586 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 7661223 is about 2767.8914357323. The cubic root of 7661223 is about 197.1360428376.

The spelling of 7661223 in words is "seven million, six hundred sixty-one thousand, two hundred twenty-three".