9913481 has 4 divisors (see below), whose sum is σ = 9955200. Its totient is φ = 9871764.

The previous prime is 9913469. The next prime is 9913507. The reversal of 9913481 is 1843199.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1843199 = 47 ⋅39217.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9913481 is a prime.

It is a super-2 number, since 2×9913481² = 196554211074722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9913411) 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, 20501 + ... + 20978.

It is an arithmetic number, because the mean of its divisors is an integer number (2488800).

Almost surely, 2^9913481 is an apocalyptic number.

It is an amenable number.

9913481 is a deficient number, since it is larger than the sum of its proper divisors (41719).

9913481 is a wasteful number, since it uses less digits than its factorization.

9913481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41718.

The product of its digits is 7776, while the sum is 35.

The square root of 9913481 is about 3148.5680872422. The cubic root of 9913481 is about 214.8203366569.

The spelling of 9913481 in words is "nine million, nine hundred thirteen thousand, four hundred eighty-one".