9981477 has 12 divisors (see below), whose sum is σ = 15728544. Its totient is φ = 6049320.

The previous prime is 9981467. The next prime is 9981551. The reversal of 9981477 is 7741899.

It is not a de Polignac number, because 9981477 - 2⁸ = 9981221 is a prime.

9981477 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9981467) 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, 50313 + ... + 50510.

It is an arithmetic number, because the mean of its divisors is an integer number (1310712).

Almost surely, 2^9981477 is an apocalyptic number.

It is an amenable number.

9981477 is a deficient number, since it is larger than the sum of its proper divisors (5747067).

9981477 is a wasteful number, since it uses less digits than its factorization.

9981477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100840 (or 100837 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 9981477 is about 3159.3475592280. The cubic root of 9981477 is about 215.3103648071.

The spelling of 9981477 in words is "nine million, nine hundred eighty-one thousand, four hundred seventy-seven".