9980487 has 24 divisors (see below), whose sum is σ = 15953808. Its totient is φ = 5961600.

The previous prime is 9980473. The next prime is 9980519. The reversal of 9980487 is 7840899.

9980487 is a `hidden beast` number, since 99 + 80 + 487 = 666.

It is not a de Polignac number, because 9980487 - 2⁴ = 9980471 is a prime.

It is a super-2 number, since 2×9980487² = 199220241514338, which contains 22 as substring.

9980487 is a modest number, since divided by 80487 gives 99 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6537 + ... + 7917.

It is an arithmetic number, because the mean of its divisors is an integer number (664742).

Almost surely, 2^9980487 is an apocalyptic number.

9980487 is a deficient number, since it is larger than the sum of its proper divisors (5973321).

9980487 is a wasteful number, since it uses less digits than its factorization.

9980487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 9980487 is about 3159.1908774242. The cubic root of 9980487 is about 215.3032461443.

The spelling of 9980487 in words is "nine million, nine hundred eighty thousand, four hundred eighty-seven".