8942431 has 4 divisors (see below), whose sum is σ = 8958664. Its totient is φ = 8926200.

The previous prime is 8942413. The next prime is 8942443. The reversal of 8942431 is 1342498.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1342498 = 2 ⋅671249.

It is a cyclic number.

It is not a de Polignac number, because 8942431 - 2¹⁷ = 8811359 is a prime.

It is a super-2 number, since 2×8942431² = 159934144379522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 8942393 and 8942402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8942491) 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, 7260 + ... + 8401.

It is an arithmetic number, because the mean of its divisors is an integer number (2239666).

Almost surely, 2^8942431 is an apocalyptic number.

8942431 is a deficient number, since it is larger than the sum of its proper divisors (16233).

8942431 is a wasteful number, since it uses less digits than its factorization.

8942431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16232.

The product of its digits is 6912, while the sum is 31.

The square root of 8942431 is about 2990.3897739258. The cubic root of 8942431 is about 207.5639208886.

The spelling of 8942431 in words is "eight million, nine hundred forty-two thousand, four hundred thirty-one".