9667551 has 8 divisors (see below), whose sum is σ = 12913024. Its totient is φ = 6433560.

The previous prime is 9667531. The next prime is 9667583. The reversal of 9667551 is 1557669.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9667551 - 2⁶ = 9667487 is a prime.

It is a Duffinian number.

9667551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9667501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 4446.

It is an arithmetic number, because the mean of its divisors is an integer number (1614128).

Almost surely, 2^9667551 is an apocalyptic number.

9667551 is a deficient number, since it is larger than the sum of its proper divisors (3245473).

9667551 is a wasteful number, since it uses less digits than its factorization.

9667551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5741.

The product of its digits is 56700, while the sum is 39.

The square root of 9667551 is about 3109.2685635049. The cubic root of 9667551 is about 213.0290467121.

The spelling of 9667551 in words is "nine million, six hundred sixty-seven thousand, five hundred fifty-one".