90505736 has 32 divisors (see below), whose sum is σ = 178770240. Its totient is φ = 42871488.

The previous prime is 90505717. The next prime is 90505741. The reversal of 90505736 is 63750509.

It is a junction number, because it is equal to n+sod(n) for n = 90505696 and 90505705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17390 + ... + 21986.

It is an arithmetic number, because the mean of its divisors is an integer number (5586570).

Almost surely, 2^90505736 is an apocalyptic number.

It is an amenable number.

90505736 is a deficient number, since it is larger than the sum of its proper divisors (88264504).

90505736 is a wasteful number, since it uses less digits than its factorization.

90505736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733 (or 4729 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 90505736 is about 9513.4502679102. The cubic root of 90505736 is about 448.9783175129.

The spelling of 90505736 in words is "ninety million, five hundred five thousand, seven hundred thirty-six".