989950465 has 8 divisors (see below), whose sum is σ = 1357646400. Its totient is φ = 678823152.

The previous prime is 989950457. The next prime is 989950499. The reversal of 989950465 is 564059989.

It is a happy number.

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

It is not a de Polignac number, because 989950465 - 2³ = 989950457 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14142115 + ... + 14142184.

It is an arithmetic number, because the mean of its divisors is an integer number (169705800).

Almost surely, 2^989950465 is an apocalyptic number.

It is an amenable number.

989950465 is a deficient number, since it is larger than the sum of its proper divisors (367695935).

989950465 is a wasteful number, since it uses less digits than its factorization.

989950465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28284311.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 989950465 is about 31463.4782724352. The cubic root of 989950465 is about 996.6388704654.

The spelling of 989950465 in words is "nine hundred eighty-nine million, nine hundred fifty thousand, four hundred sixty-five".