9998769 has 32 divisors (see below), whose sum is σ = 15759360. Its totient is φ = 5572800.

The previous prime is 9998753. The next prime is 9998777. The reversal of 9998769 is 9678999.

It is not a de Polignac number, because 9998769 - 2⁴ = 9998753 is a prime.

It is a super-2 number, since 2×9998769² = 199950763030722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (9998719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22984 + ... + 23414.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^9998769 is an apocalyptic number.

It is an amenable number.

9998769 is a deficient number, since it is larger than the sum of its proper divisors (5760591).

9998769 is a wasteful number, since it uses less digits than its factorization.

9998769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501.

The product of its digits is 2204496, while the sum is 57.

The square root of 9998769 is about 3162.0830159880. The cubic root of 9998769 is about 215.4346282767.

The spelling of 9998769 in words is "nine million, nine hundred ninety-eight thousand, seven hundred sixty-nine".