90703633 has 6 divisors (see below), whose sum is σ = 91733586. Its totient is φ = 89675712.

The previous prime is 90703609. The next prime is 90703637. The reversal of 90703633 is 33630709.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 75742209 + 14961424 = 8703^2 + 3868^2 .

It is not a de Polignac number, because 90703633 - 2¹⁷ = 90572561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90703595 and 90703604.

It is not an unprimeable number, because it can be changed into a prime (90703637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93316 + ... + 94282.

It is an arithmetic number, because the mean of its divisors is an integer number (15288931).

Almost surely, 2^90703633 is an apocalyptic number.

It is an amenable number.

90703633 is a deficient number, since it is larger than the sum of its proper divisors (1029953).

90703633 is an frugal number, since it uses more digits than its factorization.

90703633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 31.

The square root of 90703633 is about 9523.8454943368. The cubic root of 90703633 is about 449.3053199205.

The spelling of 90703633 in words is "ninety million, seven hundred three thousand, six hundred thirty-three".