9661970 has 8 divisors (see below), whose sum is σ = 17391564. Its totient is φ = 3864784.

The previous prime is 9661969. The next prime is 9661979. The reversal of 9661970 is 791669.

It can be written as a sum of positive squares in 2 ways, for example, as 8958049 + 703921 = 2993^2 + 839^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9661979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483089 + ... + 483108.

Almost surely, 2^9661970 is an apocalyptic number.

9661970 is a deficient number, since it is larger than the sum of its proper divisors (7729594).

9661970 is a wasteful number, since it uses less digits than its factorization.

9661970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966204.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 9661970 is about 3108.3709559832. The cubic root of 9661970 is about 212.9880454986.

The spelling of 9661970 in words is "nine million, six hundred sixty-one thousand, nine hundred seventy".