39730173 has 32 divisors (see below), whose sum is σ = 64753920. Its totient is φ = 21150720.

The previous prime is 39730169. The next prime is 39730183. The reversal of 39730173 is 37103793.

It is not a de Polignac number, because 39730173 - 2² = 39730169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39730123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38403 + ... + 39423.

It is an arithmetic number, because the mean of its divisors is an integer number (2023560).

Almost surely, 2^39730173 is an apocalyptic number.

It is an amenable number.

39730173 is a deficient number, since it is larger than the sum of its proper divisors (25023747).

39730173 is a wasteful number, since it uses less digits than its factorization.

39730173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157.

The product of its (nonzero) digits is 11907, while the sum is 33.

The square root of 39730173 is about 6303.1875269581. The cubic root of 39730173 is about 341.2244575604.

It can be divided in two parts, 39730 and 173, that added together give a triangular number (39903 = T₂₈₂).

The spelling of 39730173 in words is "thirty-nine million, seven hundred thirty thousand, one hundred seventy-three".