9957423 has 8 divisors (see below), whose sum is σ = 15173248. Its totient is φ = 5689944.

The previous prime is 9957407. The next prime is 9957439. The reversal of 9957423 is 3247599.

It is an interprime number because it is at equal distance from previous prime (9957407) and next prime (9957439).

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

It is not a de Polignac number, because 9957423 - 2⁴ = 9957407 is a prime.

It is a Duffinian number.

9957423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9957323) 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, 237061 + ... + 237102.

It is an arithmetic number, because the mean of its divisors is an integer number (1896656).

Almost surely, 2^9957423 is an apocalyptic number.

9957423 is a deficient number, since it is larger than the sum of its proper divisors (5215825).

9957423 is a wasteful number, since it uses less digits than its factorization.

9957423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474173.

The product of its digits is 68040, while the sum is 39.

The square root of 9957423 is about 3155.5384643512. The cubic root of 9957423 is about 215.1372694699.

The spelling of 9957423 in words is "nine million, nine hundred fifty-seven thousand, four hundred twenty-three".