90127547 has 4 divisors (see below), whose sum is σ = 94046160. Its totient is φ = 86208936.

The previous prime is 90127537. The next prime is 90127573. The reversal of 90127547 is 74572109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74572109 = 2953 ⋅25253.

It is a cyclic number.

It is not a de Polignac number, because 90127547 - 2⁶ = 90127483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90127517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1959272 + ... + 1959317.

It is an arithmetic number, because the mean of its divisors is an integer number (23511540).

Almost surely, 2^90127547 is an apocalyptic number.

90127547 is a deficient number, since it is larger than the sum of its proper divisors (3918613).

90127547 is a wasteful number, since it uses less digits than its factorization.

90127547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918612.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 90127547 is about 9493.5529176384. The cubic root of 90127547 is about 448.3520746286.

The spelling of 90127547 in words is "ninety million, one hundred twenty-seven thousand, five hundred forty-seven".