989717962 has 4 divisors (see below), whose sum is σ = 1484576946. Its totient is φ = 494858980.

The previous prime is 989717933. The next prime is 989718001. The reversal of 989717962 is 269717989.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 831687921 + 158030041 = 28839^2 + 12571^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 989717897 and 989717906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247429489 + ... + 247429492.

Almost surely, 2^989717962 is an apocalyptic number.

989717962 is a deficient number, since it is larger than the sum of its proper divisors (494858984).

989717962 is a wasteful number, since it uses less digits than its factorization.

989717962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494858983.

The product of its digits is 3429216, while the sum is 58.

The square root of 989717962 is about 31459.7832478229. The cubic root of 989717962 is about 996.5608397359.

The spelling of 989717962 in words is "nine hundred eighty-nine million, seven hundred seventeen thousand, nine hundred sixty-two".