9670661 has 16 divisors (see below), whose sum is σ = 12985728. Its totient is φ = 6955200.

The previous prime is 9670621. The next prime is 9670663. The reversal of 9670661 is 1660769.

It is a happy number.

It is not a de Polignac number, because 9670661 - 2¹⁸ = 9408517 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9670663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3830 + ... + 5831.

It is an arithmetic number, because the mean of its divisors is an integer number (811608).

Almost surely, 2^9670661 is an apocalyptic number.

9670661 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

9670661 is a deficient number, since it is larger than the sum of its proper divisors (3315067).

9670661 is a wasteful number, since it uses less digits than its factorization.

9670661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9692.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 9670661 is about 3109.7686409121. The cubic root of 9670661 is about 213.0518877020.

The spelling of 9670661 in words is "nine million, six hundred seventy thousand, six hundred sixty-one".