90730017 has 64 divisors (see below), whose sum is σ = 159936000. Its totient is φ = 50803200.

The previous prime is 90730001. The next prime is 90730027. The reversal of 90730017 is 71003709.

It is not a de Polignac number, because 90730017 - 2⁴ = 90730001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (90730027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 898267 + ... + 898367.

It is an arithmetic number, because the mean of its divisors is an integer number (2499000).

Almost surely, 2^90730017 is an apocalyptic number.

90730017 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

It is an amenable number.

90730017 is a deficient number, since it is larger than the sum of its proper divisors (69205983).

90730017 is a wasteful number, since it uses less digits than its factorization.

90730017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 27.

The square root of 90730017 is about 9525.2305483909. The cubic root of 90730017 is about 449.3488805510.

The spelling of 90730017 in words is "ninety million, seven hundred thirty thousand, seventeen".