7225947 has 12 divisors (see below), whose sum is σ = 10987080. Its totient is φ = 4563648.

The previous prime is 7225943. The next prime is 7225949. The reversal of 7225947 is 7495227.

It is not a de Polignac number, because 7225947 - 2² = 7225943 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

7225947 is a lucky number.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (7225943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20958 + ... + 21299.

It is an arithmetic number, because the mean of its divisors is an integer number (915590).

Almost surely, 2^7225947 is an apocalyptic number.

7225947 is a deficient number, since it is larger than the sum of its proper divisors (3761133).

7225947 is a wasteful number, since it uses less digits than its factorization.

7225947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42282 (or 42279 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 7225947 is about 2688.1121628384. The cubic root of 7225947 is about 193.3295576618.

The spelling of 7225947 in words is "seven million, two hundred twenty-five thousand, nine hundred forty-seven".