9667531 has 2 divisors, whose sum is σ = 9667532. Its totient is φ = 9667530.

The previous prime is 9667529. The next prime is 9667583. The reversal of 9667531 is 1357669.

9667531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1357669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9667531 - 2¹ = 9667529 is a prime.

It is a super-2 number, since 2×9667531² = 186922311271922, which contains 22 as substring.

Together with 9667529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9667501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4833765 + 4833766.

It is an arithmetic number, because the mean of its divisors is an integer number (4833766).

Almost surely, 2^9667531 is an apocalyptic number.

9667531 is a deficient number, since it is larger than the sum of its proper divisors (1).

9667531 is an equidigital number, since it uses as much as digits as its factorization.

9667531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 37.

The square root of 9667531 is about 3109.2653473128. The cubic root of 9667531 is about 213.0288998089.

The spelling of 9667531 in words is "nine million, six hundred sixty-seven thousand, five hundred thirty-one".