90454027 has 2 divisors, whose sum is σ = 90454028. Its totient is φ = 90454026.

The previous prime is 90454019. The next prime is 90454097. The reversal of 90454027 is 72045409.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90454027 - 2³ = 90454019 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90454027.

It is not a weakly prime, because it can be changed into another prime (90454097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45227013 + 45227014.

It is an arithmetic number, because the mean of its divisors is an integer number (45227014).

Almost surely, 2^90454027 is an apocalyptic number.

90454027 is a deficient number, since it is larger than the sum of its proper divisors (1).

90454027 is an equidigital number, since it uses as much as digits as its factorization.

90454027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 90454027 is about 9510.7322010453. The cubic root of 90454027 is about 448.8927957045.

It can be divided in two parts, 9045402 and 7, that added together give a palindrome (9045409).

The spelling of 90454027 in words is "ninety million, four hundred fifty-four thousand, twenty-seven".