9917423 has 8 divisors (see below), whose sum is σ = 10260480. Its totient is φ = 9579960.

The previous prime is 9917419. The next prime is 9917429. The reversal of 9917423 is 3247199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9917423 - 2² = 9917419 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9917429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2378 + ... + 5048.

It is an arithmetic number, because the mean of its divisors is an integer number (1282560).

Almost surely, 2^9917423 is an apocalyptic number.

9917423 is a deficient number, since it is larger than the sum of its proper divisors (343057).

9917423 is a wasteful number, since it uses less digits than its factorization.

9917423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797.

The product of its digits is 13608, while the sum is 35.

The square root of 9917423 is about 3149.1940238734. The cubic root of 9917423 is about 214.8488066279.

The spelling of 9917423 in words is "nine million, nine hundred seventeen thousand, four hundred twenty-three".