90743073 has 12 divisors (see below), whose sum is σ = 126482160. Its totient is φ = 57864136.

The previous prime is 90743063. The next prime is 90743077. The reversal of 90743073 is 37034709.

It is a de Polignac number, because none of the positive numbers 2^k-90743073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90743077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27003 + ... + 30176.

It is an arithmetic number, because the mean of its divisors is an integer number (10540180).

Almost surely, 2^90743073 is an apocalyptic number.

It is an amenable number.

90743073 is a deficient number, since it is larger than the sum of its proper divisors (35739087).

90743073 is a wasteful number, since it uses less digits than its factorization.

90743073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57228 (or 57205 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 90743073 is about 9525.9158614802. The cubic root of 90743073 is about 449.3704332036.

The spelling of 90743073 in words is "ninety million, seven hundred forty-three thousand, seventy-three".