9967768 has 8 divisors (see below), whose sum is σ = 18689580. Its totient is φ = 4983880.

The previous prime is 9967759. The next prime is 9967777. The reversal of 9967768 is 8677699.

It is an interprime number because it is at equal distance from previous prime (9967759) and next prime (9967777).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622978 + ... + 622993.

Almost surely, 2^9967768 is an apocalyptic number.

It is an amenable number.

9967768 is a deficient number, since it is larger than the sum of its proper divisors (8721812).

9967768 is a wasteful number, since it uses less digits than its factorization.

9967768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245977 (or 1245973 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 52.

The square root of 9967768 is about 3157.1772202396. The cubic root of 9967768 is about 215.2117473998.

The spelling of 9967768 in words is "nine million, nine hundred sixty-seven thousand, seven hundred sixty-eight".