9992257 has 8 divisors (see below), whose sum is σ = 11195712. Its totient is φ = 8838000.

The previous prime is 9992237. The next prime is 9992263. The reversal of 9992257 is 7522999.

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 9992257 - 2¹¹ = 9990209 is a prime.

It is a d-powerful number, because it can be written as 9⁵ + 9⁵ + 9⁵ + 2⁵ + 2²¹ + 5⁹ + 7⁸ .

It is not an unprimeable number, because it can be changed into a prime (9992207) 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, 11869 + ... + 12682.

It is an arithmetic number, because the mean of its divisors is an integer number (1399464).

Almost surely, 2^9992257 is an apocalyptic number.

It is an amenable number.

9992257 is a deficient number, since it is larger than the sum of its proper divisors (1203455).

9992257 is a wasteful number, since it uses less digits than its factorization.

9992257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24599.

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

The square root of 9992257 is about 3161.0531472913. The cubic root of 9992257 is about 215.3878486858.

The spelling of 9992257 in words is "nine million, nine hundred ninety-two thousand, two hundred fifty-seven".