9958869 has 28 divisors (see below), whose sum is σ = 15739200. Its totient is φ = 6281064.

The previous prime is 9958853. The next prime is 9958873. The reversal of 9958869 is 9688599.

It is not a de Polignac number, because 9958869 - 2⁴ = 9958853 is a prime.

It is a super-2 number, since 2×9958869² = 198358143518322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9958849) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 13492 + ... + 14210.

Almost surely, 2^9958869 is an apocalyptic number.

It is an amenable number.

9958869 is a deficient number, since it is larger than the sum of its proper divisors (5780331).

9958869 is an equidigital number, since it uses as much as digits as its factorization.

9958869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 741 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 9958869 is about 3155.7675769930. The cubic root of 9958869 is about 215.1476829217.

The spelling of 9958869 in words is "nine million, nine hundred fifty-eight thousand, eight hundred sixty-nine".