9980392 has 8 divisors (see below), whose sum is σ = 18713250. Its totient is φ = 4990192.

The previous prime is 9980389. The next prime is 9980431. The reversal of 9980392 is 2930899.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7001316 + 2979076 = 2646^2 + 1726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623767 + ... + 623782.

Almost surely, 2^9980392 is an apocalyptic number.

It is an amenable number.

9980392 is a deficient number, since it is larger than the sum of its proper divisors (8732858).

9980392 is a wasteful number, since it uses less digits than its factorization.

9980392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247555 (or 1247551 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 9980392 is about 3159.1758418929. The cubic root of 9980392 is about 215.3025630155.

The spelling of 9980392 in words is "nine million, nine hundred eighty thousand, three hundred ninety-two".