9967770 has 24 divisors (see below), whose sum is σ = 25916436. Its totient is φ = 2658048.

The previous prime is 9967759. The next prime is 9967777. The reversal of 9967770 is 777699.

It can be written as a sum of positive squares in 2 ways, for example, as 9345249 + 622521 = 3057^2 + 789^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (9967777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55287 + ... + 55466.

Almost surely, 2^9967770 is an apocalyptic number.

9967770 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9967770 is an abundant number, since it is smaller than the sum of its proper divisors (15948666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9967770 is a wasteful number, since it uses less digits than its factorization.

9967770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110766 (or 110763 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 45.

The square root of 9967770 is about 3157.1775369782. The cubic root of 9967770 is about 215.2117617936.

The spelling of 9967770 in words is "nine million, nine hundred sixty-seven thousand, seven hundred seventy".