90455487 has 8 divisors (see below), whose sum is σ = 127701936. Its totient is φ = 56756352.

The previous prime is 90455479. The next prime is 90455513. The reversal of 90455487 is 78455409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90455487 - 2³ = 90455479 is a prime.

It is a super-3 number, since 3×90455487³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90455467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886768 + ... + 886869.

It is an arithmetic number, because the mean of its divisors is an integer number (15962742).

Almost surely, 2^90455487 is an apocalyptic number.

90455487 is a deficient number, since it is larger than the sum of its proper divisors (37246449).

90455487 is a wasteful number, since it uses less digits than its factorization.

90455487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773657.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 90455487 is about 9510.8089561299. The cubic root of 90455487 is about 448.8952108539.

The spelling of 90455487 in words is "ninety million, four hundred fifty-five thousand, four hundred eighty-seven".