9137973 has 16 divisors (see below), whose sum is σ = 13428800. Its totient is φ = 5491584.

The previous prime is 9137951. The next prime is 9137981. The reversal of 9137973 is 3797319.

It is not a de Polignac number, because 9137973 - 2⁵ = 9137941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9137173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048 + ... + 4401.

It is an arithmetic number, because the mean of its divisors is an integer number (839300).

Almost surely, 2^9137973 is an apocalyptic number.

It is an amenable number.

9137973 is a deficient number, since it is larger than the sum of its proper divisors (4290827).

9137973 is a wasteful number, since it uses less digits than its factorization.

9137973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508.

The product of its digits is 35721, while the sum is 39.

The square root of 9137973 is about 3022.9080369737. The cubic root of 9137973 is about 209.0659422730.

It can be divided in two parts, 91 and 37973, that multiplied together give a palindrome (3455543).

The spelling of 9137973 in words is "nine million, one hundred thirty-seven thousand, nine hundred seventy-three".