9745731 has 8 divisors (see below), whose sum is σ = 14438160. Its totient is φ = 6497136.

The previous prime is 9745699. The next prime is 9745739. The reversal of 9745731 is 1375479.

It is a happy number.

It is not a de Polignac number, because 9745731 - 2⁵ = 9745699 is a prime.

It is a super-2 number, since 2×9745731² = 189958545448722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9745739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180450 + ... + 180503.

It is an arithmetic number, because the mean of its divisors is an integer number (1804770).

Almost surely, 2^9745731 is an apocalyptic number.

9745731 is a deficient number, since it is larger than the sum of its proper divisors (4692429).

9745731 is a wasteful number, since it uses less digits than its factorization.

9745731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360962 (or 360956 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 9745731 is about 3121.8153372677. The cubic root of 9745731 is about 213.6017500803.

The spelling of 9745731 in words is "nine million, seven hundred forty-five thousand, seven hundred thirty-one".