989162417 has 4 divisors (see below), whose sum is σ = 993011556. Its totient is φ = 985313280.

The previous prime is 989162407. The next prime is 989162437. The reversal of 989162417 is 714261989.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 482417296 + 506745121 = 21964^2 + 22511^2 .

It is a cyclic number.

It is not a de Polignac number, because 989162417 - 2¹² = 989158321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989162407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1924184 + ... + 1924697.

It is an arithmetic number, because the mean of its divisors is an integer number (248252889).

Almost surely, 2^989162417 is an apocalyptic number.

It is an amenable number.

989162417 is a deficient number, since it is larger than the sum of its proper divisors (3849139).

989162417 is a wasteful number, since it uses less digits than its factorization.

989162417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849138.

The product of its digits is 217728, while the sum is 47.

The square root of 989162417 is about 31450.9525610911. The cubic root of 989162417 is about 996.3743428303.

The spelling of 989162417 in words is "nine hundred eighty-nine million, one hundred sixty-two thousand, four hundred seventeen".