9980415 has 40 divisors (see below), whose sum is σ = 18846960. Its totient is φ = 5038848.

The previous prime is 9980389. The next prime is 9980431. The reversal of 9980415 is 5140899.

It is not a de Polignac number, because 9980415 - 2⁶ = 9980351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9980415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7047 + ... + 8343.

It is an arithmetic number, because the mean of its divisors is an integer number (471174).

Almost surely, 2^9980415 is an apocalyptic number.

9980415 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9980415 is a deficient number, since it is larger than the sum of its proper divisors (8866545).

9980415 is a wasteful number, since it uses less digits than its factorization.

9980415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 9980415 is about 3159.1794820808. The cubic root of 9980415 is about 215.3027284050.

The spelling of 9980415 in words is "nine million, nine hundred eighty thousand, four hundred fifteen".