9691481 has 4 divisors (see below), whose sum is σ = 10025700. Its totient is φ = 9357264.

The previous prime is 9691471. The next prime is 9691489. The reversal of 9691481 is 1841969.

It is a happy number.

9691481 is digitally balanced in base 2, 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 4583881 + 5107600 = 2141^2 + 2260^2 .

It is a cyclic number.

It is not a de Polignac number, because 9691481 - 2⁶ = 9691417 is a prime.

It is a super-2 number, since 2×9691481² = 187849607946722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9691489) 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, 167066 + ... + 167123.

It is an arithmetic number, because the mean of its divisors is an integer number (2506425).

Almost surely, 2^9691481 is an apocalyptic number.

It is an amenable number.

9691481 is a deficient number, since it is larger than the sum of its proper divisors (334219).

9691481 is a wasteful number, since it uses less digits than its factorization.

9691481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334218.

The product of its digits is 15552, while the sum is 38.

The square root of 9691481 is about 3113.1143570386. The cubic root of 9691481 is about 213.2046714970.

The spelling of 9691481 in words is "nine million, six hundred ninety-one thousand, four hundred eighty-one".