980447909 has 12 divisors (see below), whose sum is σ = 1141059744. Its totient is φ = 839987064.

The previous prime is 980447893. The next prime is 980447927. The reversal of 980447909 is 909744089.

980447909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 980447909 - 2⁴ = 980447893 is a prime.

It is a super-2 number, since 2×980447909² = 1922556204524944562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980447939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153824 + ... + 160070.

It is an arithmetic number, because the mean of its divisors is an integer number (95088312).

Almost surely, 2^980447909 is an apocalyptic number.

It is an amenable number.

980447909 is a deficient number, since it is larger than the sum of its proper divisors (160611835).

980447909 is a wasteful number, since it uses less digits than its factorization.

980447909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464 (or 9457 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 980447909 is about 31312.1048318378. The cubic root of 980447909 is about 993.4396928163.

The spelling of 980447909 in words is "nine hundred eighty million, four hundred forty-seven thousand, nine hundred nine".