90534387 has 8 divisors (see below), whose sum is σ = 120757504. Its totient is φ = 60333768.

The previous prime is 90534359. The next prime is 90534391. The reversal of 90534387 is 78343509.

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

It is not a de Polignac number, because 90534387 - 2¹⁰ = 90533363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90534347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9858 + ... + 16680.

It is an arithmetic number, because the mean of its divisors is an integer number (15094688).

Almost surely, 2^90534387 is an apocalyptic number.

90534387 is a deficient number, since it is larger than the sum of its proper divisors (30223117).

90534387 is a wasteful number, since it uses less digits than its factorization.

90534387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11249.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 90534387 is about 9514.9559641650. The cubic root of 90534387 is about 449.0256895403.

The spelling of 90534387 in words is "ninety million, five hundred thirty-four thousand, three hundred eighty-seven".