7247665 has 8 divisors (see below), whose sum is σ = 8712000. Its totient is φ = 5788272.

The previous prime is 7247663. The next prime is 7247687. The reversal of 7247665 is 5667427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7247665 - 2¹ = 7247663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7247663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4086 + ... + 5584.

It is an arithmetic number, because the mean of its divisors is an integer number (1089000).

Almost surely, 2^7247665 is an apocalyptic number.

It is an amenable number.

7247665 is a deficient number, since it is larger than the sum of its proper divisors (1464335).

7247665 is a wasteful number, since it uses less digits than its factorization.

7247665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471.

The product of its digits is 70560, while the sum is 37.

The square root of 7247665 is about 2692.1487700348. The cubic root of 7247665 is about 193.5230516464.

The spelling of 7247665 in words is "seven million, two hundred forty-seven thousand, six hundred sixty-five".