9667642 has 4 divisors (see below), whose sum is σ = 14501466. Its totient is φ = 4833820.

The previous prime is 9667639. The next prime is 9667661. The reversal of 9667642 is 2467669.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5861241 + 3806401 = 2421^2 + 1951^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9667595 and 9667604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2416909 + ... + 2416912.

Almost surely, 2^9667642 is an apocalyptic number.

9667642 is a deficient number, since it is larger than the sum of its proper divisors (4833824).

9667642 is a wasteful number, since it uses less digits than its factorization.

9667642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833823.

The product of its digits is 108864, while the sum is 40.

The square root of 9667642 is about 3109.2831971372. The cubic root of 9667642 is about 213.0297151193.

The spelling of 9667642 in words is "nine million, six hundred sixty-seven thousand, six hundred forty-two".