989990962 has 8 divisors (see below), whose sum is σ = 1485153792. Its totient is φ = 494939700.

The previous prime is 989990933. The next prime is 989990987. The reversal of 989990962 is 269099989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 989990962.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214 + ... + 44497.

It is an arithmetic number, because the mean of its divisors is an integer number (185644224).

Almost surely, 2^989990962 is an apocalyptic number.

989990962 is a deficient number, since it is larger than the sum of its proper divisors (495162830).

989990962 is a wasteful number, since it uses less digits than its factorization.

989990962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55784.

The product of its (nonzero) digits is 5668704, while the sum is 61.

The square root of 989990962 is about 31464.1218215287. The cubic root of 989990962 is about 996.6524604834.

The spelling of 989990962 in words is "nine hundred eighty-nine million, nine hundred ninety thousand, nine hundred sixty-two".