989340862 has 4 divisors (see below), whose sum is σ = 1484011296. Its totient is φ = 494670430.

The previous prime is 989340799. The next prime is 989340871. The reversal of 989340862 is 268043989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 268043989 = 4733 ⋅56633.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247335214 + ... + 247335217.

It is an arithmetic number, because the mean of its divisors is an integer number (371002824).

Almost surely, 2^989340862 is an apocalyptic number.

989340862 is a deficient number, since it is larger than the sum of its proper divisors (494670434).

989340862 is a wasteful number, since it uses less digits than its factorization.

989340862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494670433.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 989340862 is about 31453.7893106697. The cubic root of 989340862 is about 996.4342545718.

The spelling of 989340862 in words is "nine hundred eighty-nine million, three hundred forty thousand, eight hundred sixty-two".