90835205 has 4 divisors (see below), whose sum is σ = 109002252. Its totient is φ = 72668160.

The previous prime is 90835169. The next prime is 90835223. The reversal of 90835205 is 50253809.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19483396 + 71351809 = 4414^2 + 8447^2 .

It is not a de Polignac number, because 90835205 - 2⁸ = 90834949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9083516 + ... + 9083525.

It is an arithmetic number, because the mean of its divisors is an integer number (27250563).

Almost surely, 2^90835205 is an apocalyptic number.

It is an amenable number.

90835205 is a deficient number, since it is larger than the sum of its proper divisors (18167047).

90835205 is a wasteful number, since it uses less digits than its factorization.

90835205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18167046.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 90835205 is about 9530.7504951079. The cubic root of 90835205 is about 449.5224646170.

The spelling of 90835205 in words is "ninety million, eight hundred thirty-five thousand, two hundred five".