90592405 has 16 divisors (see below), whose sum is σ = 115328880. Its totient is φ = 68078592.

The previous prime is 90592367. The next prime is 90592417. The reversal of 90592405 is 50429509.

It can be written as a sum of positive squares in 8 ways, for example, as 6081156 + 84511249 = 2466^2 + 9193^2 .

It is a cyclic number.

It is not a de Polignac number, because 90592405 - 2¹³ = 90584213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84211 + ... + 85279.

It is an arithmetic number, because the mean of its divisors is an integer number (7208055).

Almost surely, 2^90592405 is an apocalyptic number.

It is an amenable number.

90592405 is a deficient number, since it is larger than the sum of its proper divisors (24736475).

90592405 is a wasteful number, since it uses less digits than its factorization.

90592405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 90592405 is about 9518.0042550947. The cubic root of 90592405 is about 449.1215868390.

The spelling of 90592405 in words is "ninety million, five hundred ninety-two thousand, four hundred five".