9907481 has 4 divisors (see below), whose sum is σ = 10490292. Its totient is φ = 9324672.

The previous prime is 9907477. The next prime is 9907517. The reversal of 9907481 is 1847099.

9907481 is digitally balanced in base 2 and base 3, because in such bases 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 6451600 + 3455881 = 2540^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 9907481 - 2² = 9907477 is a prime.

It is a super-2 number, since 2×9907481² = 196316359530722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9907081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291380 + ... + 291413.

It is an arithmetic number, because the mean of its divisors is an integer number (2622573).

Almost surely, 2^9907481 is an apocalyptic number.

It is an amenable number.

9907481 is a deficient number, since it is larger than the sum of its proper divisors (582811).

9907481 is a wasteful number, since it uses less digits than its factorization.

9907481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582810.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 9907481 is about 3147.6151289508. The cubic root of 9907481 is about 214.7769888782.

The spelling of 9907481 in words is "nine million, nine hundred seven thousand, four hundred eighty-one".