989896105 has 64 divisors (see below), whose sum is σ = 1417409280. Its totient is φ = 655948800.

The previous prime is 989896099. The next prime is 989896109. The reversal of 989896105 is 501698989.

It is not a de Polignac number, because 989896105 - 2¹¹ = 989894057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (989896109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3378339 + ... + 3378631.

It is an arithmetic number, because the mean of its divisors is an integer number (22147020).

Almost surely, 2^989896105 is an apocalyptic number.

989896105 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

989896105 is a deficient number, since it is larger than the sum of its proper divisors (427513175).

989896105 is a wasteful number, since it uses less digits than its factorization.

989896105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 1399680, while the sum is 55.

The square root of 989896105 is about 31462.6144018580. The cubic root of 989896105 is about 996.6206277072.

The spelling of 989896105 in words is "nine hundred eighty-nine million, eight hundred ninety-six thousand, one hundred five".