90535858 has 8 divisors (see below), whose sum is σ = 155204352. Its totient is φ = 38801076.

The previous prime is 90535853. The next prime is 90535859. The reversal of 90535858 is 85853509.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (90535853) 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, 3233410 + ... + 3233437.

It is an arithmetic number, because the mean of its divisors is an integer number (19400544).

Almost surely, 2^90535858 is an apocalyptic number.

90535858 is a deficient number, since it is larger than the sum of its proper divisors (64668494).

90535858 is a wasteful number, since it uses less digits than its factorization.

90535858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466856.

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 90535858 is about 9515.0332632104. The cubic root of 90535858 is about 449.0281214457.

It can be divided in two parts, 905 and 35858, that added together give a palindrome (36763).

The spelling of 90535858 in words is "ninety million, five hundred thirty-five thousand, eight hundred fifty-eight".