9973427 has 4 divisors (see below), whose sum is σ = 10007760. Its totient is φ = 9939096.

The previous prime is 9973417. The next prime is 9973489. The reversal of 9973427 is 7243799.

9973427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9973427 - 2¹² = 9969331 is a prime.

It is a super-2 number, since 2×9973427² = 198938492248658, which contains 22 as substring.

It is a d-powerful number, because it can be written as 9³ + 9⁴ + 7³ + 3⁸ + 4¹¹ + 2⁷ + 7⁸ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9973417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16727 + ... + 17312.

It is an arithmetic number, because the mean of its divisors is an integer number (2501940).

Almost surely, 2^9973427 is an apocalyptic number.

9973427 is a deficient number, since it is larger than the sum of its proper divisors (34333).

9973427 is a wasteful number, since it uses less digits than its factorization.

9973427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34332.

The product of its digits is 95256, while the sum is 41.

The square root of 9973427 is about 3158.0733050390. The cubic root of 9973427 is about 215.2524670766.

The spelling of 9973427 in words is "nine million, nine hundred seventy-three thousand, four hundred twenty-seven".