90745227 has 6 divisors (see below), whose sum is σ = 131076452. Its totient is φ = 60496812.

The previous prime is 90745129. The next prime is 90745229. The reversal of 90745227 is 72254709.

It is not a de Polignac number, because 90745227 - 2⁸ = 90744971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90745191 and 90745200.

It is not an unprimeable number, because it can be changed into a prime (90745229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5041393 + ... + 5041410.

Almost surely, 2^90745227 is an apocalyptic number.

90745227 is a deficient number, since it is larger than the sum of its proper divisors (40331225).

90745227 is a wasteful number, since it uses less digits than its factorization.

90745227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10082809 (or 10082806 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 90745227 is about 9526.0289208043. The cubic root of 90745227 is about 449.3739887964.

The spelling of 90745227 in words is "ninety million, seven hundred forty-five thousand, two hundred twenty-seven".