9425731 has 4 divisors (see below), whose sum is σ = 10772272. Its totient is φ = 8079192.

The previous prime is 9425719. The next prime is 9425743. The reversal of 9425731 is 1375249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1375249 = 17 ⋅80897.

It is an interprime number because it is at equal distance from previous prime (9425719) and next prime (9425743).

It is a cyclic number.

It is not a de Polignac number, because 9425731 - 2¹¹ = 9423683 is a prime.

It is a super-2 number, since 2×9425731² = 177688809768722, which contains 22 as substring.

9425731 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9425693 and 9425702.

It is not an unprimeable number, because it can be changed into a prime (9425771) 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, 673260 + ... + 673273.

It is an arithmetic number, because the mean of its divisors is an integer number (2693068).

Almost surely, 2^9425731 is an apocalyptic number.

9425731 is a deficient number, since it is larger than the sum of its proper divisors (1346541).

9425731 is a wasteful number, since it uses less digits than its factorization.

9425731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346540.

The product of its digits is 7560, while the sum is 31.

The square root of 9425731 is about 3070.1353390364. The cubic root of 9425731 is about 211.2378217365.

The spelling of 9425731 in words is "nine million, four hundred twenty-five thousand, seven hundred thirty-one".