7447481 has 8 divisors (see below), whose sum is σ = 7576800. Its totient is φ = 7319520.

The previous prime is 7447459. The next prime is 7447483. The reversal of 7447481 is 1847447.

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 7447481 - 2⁶ = 7447417 is a prime.

It is a super-2 number, since 2×7447481² = 110929946490722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7447483) 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, 18005 + ... + 18413.

It is an arithmetic number, because the mean of its divisors is an integer number (947100).

Almost surely, 2^7447481 is an apocalyptic number.

It is an amenable number.

7447481 is a deficient number, since it is larger than the sum of its proper divisors (129319).

7447481 is a wasteful number, since it uses less digits than its factorization.

7447481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679.

The product of its digits is 25088, while the sum is 35.

The square root of 7447481 is about 2729.0073286820. The cubic root of 7447481 is about 195.2854115520.

The spelling of 7447481 in words is "seven million, four hundred forty-seven thousand, four hundred eighty-one".