90561935 has 4 divisors (see below), whose sum is σ = 108674328. Its totient is φ = 72449544.

The previous prime is 90561901. The next prime is 90561949. The reversal of 90561935 is 53916509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53916509 = 19 ⋅2837711.

It is a cyclic number.

It is not a de Polignac number, because 90561935 - 2⁶ = 90561871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9056189 + ... + 9056198.

It is an arithmetic number, because the mean of its divisors is an integer number (27168582).

Almost surely, 2^90561935 is an apocalyptic number.

90561935 is a deficient number, since it is larger than the sum of its proper divisors (18112393).

90561935 is a wasteful number, since it uses less digits than its factorization.

90561935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18112392.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 90561935 is about 9516.4034697989. The cubic root of 90561935 is about 449.0712284259.

The spelling of 90561935 in words is "ninety million, five hundred sixty-one thousand, nine hundred thirty-five".