9904957 has 4 divisors (see below), whose sum is σ = 9913120. Its totient is φ = 9896796.

The previous prime is 9904949. The next prime is 9904967. The reversal of 9904957 is 7594099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7594099 = 709 ⋅10711.

It is a cyclic number.

It is not a de Polignac number, because 9904957 - 2³ = 9904949 is a prime.

It is a Duffinian number.

9904957 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9904967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1857 + ... + 4822.

It is an arithmetic number, because the mean of its divisors is an integer number (2478280).

Almost surely, 2^9904957 is an apocalyptic number.

It is an amenable number.

9904957 is a deficient number, since it is larger than the sum of its proper divisors (8163).

9904957 is a wasteful number, since it uses less digits than its factorization.

9904957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 9904957 is about 3147.2141649402. The cubic root of 9904957 is about 214.7587486831.

The spelling of 9904957 in words is "nine million, nine hundred four thousand, nine hundred fifty-seven".