9742479 has 16 divisors (see below), whose sum is σ = 13822560. Its totient is φ = 6103680.

The previous prime is 9742471. The next prime is 9742483.

9742479 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9742479 - 2³ = 9742471 is a prime.

9742479 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9742479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9742471) 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, 14409 + ... + 15069.

It is an arithmetic number, because the mean of its divisors is an integer number (863910).

Almost surely, 2^9742479 is an apocalyptic number.

9742479 is a deficient number, since it is larger than the sum of its proper divisors (4080081).

9742479 is an equidigital number, since it uses as much as digits as its factorization.

9742479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 681 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 9742479 is about 3121.2944430156. The cubic root of 9742479 is about 213.5779889016.

The spelling of 9742479 in words is "nine million, seven hundred forty-two thousand, four hundred seventy-nine".