7742223 has 24 divisors (see below), whose sum is σ = 11729536. Its totient is φ = 5103000.

The previous prime is 7742221. The next prime is 7742239. The reversal of 7742223 is 3222477.

It is not a de Polignac number, because 7742223 - 2¹ = 7742221 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7742221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36588 + ... + 36798.

Almost surely, 2^7742223 is an apocalyptic number.

7742223 is a deficient number, since it is larger than the sum of its proper divisors (3987313).

7742223 is a wasteful number, since it uses less digits than its factorization.

7742223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 365 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 7742223 is about 2782.4850403911. The cubic root of 7742223 is about 197.8283636567.

The spelling of 7742223 in words is "seven million, seven hundred forty-two thousand, two hundred twenty-three".