90730175 has 6 divisors (see below), whose sum is σ = 112505448. Its totient is φ = 72584120.

The previous prime is 90730169. The next prime is 90730177. The reversal of 90730175 is 57103709.

It is not a de Polignac number, because 90730175 - 2¹⁰ = 90729151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90730177) 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 5 ways as a sum of consecutive naturals, for example, 1814579 + ... + 1814628.

It is an arithmetic number, because the mean of its divisors is an integer number (18750908).

Almost surely, 2^90730175 is an apocalyptic number.

90730175 is a deficient number, since it is larger than the sum of its proper divisors (21775273).

90730175 is a wasteful number, since it uses less digits than its factorization.

90730175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629217 (or 3629212 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 90730175 is about 9525.2388421498. The cubic root of 90730175 is about 449.3491413874.

The spelling of 90730175 in words is "ninety million, seven hundred thirty thousand, one hundred seventy-five".