9729137 has 16 divisors (see below), whose sum is σ = 11058432. Its totient is φ = 8482320.

The previous prime is 9729131. The next prime is 9729143. The reversal of 9729137 is 7319279.

It is an interprime number because it is at equal distance from previous prime (9729131) and next prime (9729143).

It is not a de Polignac number, because 9729137 - 2⁸ = 9728881 is a prime.

It is a super-2 number, since 2×9729137² = 189312213529538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9729137.

It is not an unprimeable number, because it can be changed into a prime (9729131) 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 15 ways as a sum of consecutive naturals, for example, 31538 + ... + 31844.

It is an arithmetic number, because the mean of its divisors is an integer number (691152).

Almost surely, 2^9729137 is an apocalyptic number.

It is an amenable number.

9729137 is a deficient number, since it is larger than the sum of its proper divisors (1329295).

9729137 is a wasteful number, since it uses less digits than its factorization.

9729137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its digits is 23814, while the sum is 38.

The square root of 9729137 is about 3119.1564564799. The cubic root of 9729137 is about 213.4804483848.

The spelling of 9729137 in words is "nine million, seven hundred twenty-nine thousand, one hundred thirty-seven".