7247885 has 4 divisors (see below), whose sum is σ = 8697468. Its totient is φ = 5798304.

The previous prime is 7247881. The next prime is 7247897. The reversal of 7247885 is 5887427.

7247885 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4468996 + 2778889 = 2114^2 + 1667^2 .

It is a cyclic number.

It is not a de Polignac number, because 7247885 - 2² = 7247881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7247881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724784 + ... + 724793.

It is an arithmetic number, because the mean of its divisors is an integer number (2174367).

Almost surely, 2^7247885 is an apocalyptic number.

It is an amenable number.

7247885 is a deficient number, since it is larger than the sum of its proper divisors (1449583).

7247885 is a wasteful number, since it uses less digits than its factorization.

7247885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449582.

The product of its digits is 125440, while the sum is 41.

The square root of 7247885 is about 2692.1896292795. The cubic root of 7247885 is about 193.5250097318.

The spelling of 7247885 in words is "seven million, two hundred forty-seven thousand, eight hundred eighty-five".