9920613 has 16 divisors (see below), whose sum is σ = 14034816. Its totient is φ = 6219840.

The previous prime is 9920611. The next prime is 9920621. The reversal of 9920613 is 3160299.

It is not a de Polignac number, because 9920613 - 2¹ = 9920611 is a prime.

9920613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9920611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3031 + ... + 5387.

It is an arithmetic number, because the mean of its divisors is an integer number (877176).

Almost surely, 2^9920613 is an apocalyptic number.

It is an amenable number.

9920613 is a deficient number, since it is larger than the sum of its proper divisors (4114203).

9920613 is a wasteful number, since it uses less digits than its factorization.

9920613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 9920613 is about 3149.7004619487. The cubic root of 9920613 is about 214.8718399710.

The spelling of 9920613 in words is "nine million, nine hundred twenty thousand, six hundred thirteen".