9375072731 has 8 divisors (see below), whose sum is σ = 9680292864. Its totient is φ = 9070027560.

The previous prime is 9375072727. The next prime is 9375072743. The reversal of 9375072731 is 1372705739.

9375072731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9375072731 - 2² = 9375072727 is a prime.

It is a super-2 number, since 2×9375072731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9375072761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69896 + ... + 153738.

It is an arithmetic number, because the mean of its divisors is an integer number (1210036608).

Almost surely, 2^9375072731 is an apocalyptic number.

9375072731 is a deficient number, since it is larger than the sum of its proper divisors (305220133).

9375072731 is a wasteful number, since it uses less digits than its factorization.

9375072731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87481.

The product of its (nonzero) digits is 277830, while the sum is 44.

The square root of 9375072731 is about 96824.9592357260. The cubic root of 9375072731 is about 2108.5871160137.

The spelling of 9375072731 in words is "nine billion, three hundred seventy-five million, seventy-two thousand, seven hundred thirty-one".