90427 has 4 divisors (see below), whose sum is σ = 93376. Its totient is φ = 87480.

The previous prime is 90407. The next prime is 90437. The reversal of 90427 is 72409.

90427 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90427 - 2¹¹ = 88379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90398 and 90407.

It is not an unprimeable number, because it can be changed into a prime (90407) 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, 1428 + ... + 1489.

It is an arithmetic number, because the mean of its divisors is an integer number (23344).

2⁹⁰⁴²⁷ is an apocalyptic number.

90427 is a deficient number, since it is larger than the sum of its proper divisors (2949).

90427 is a wasteful number, since it uses less digits than its factorization.

90427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 90427 is about 300.7108245474. The cubic root of 90427 is about 44.8848082626.

The spelling of 90427 in words is "ninety thousand, four hundred twenty-seven".