90390535 has 8 divisors (see below), whose sum is σ = 112209120. Its totient is φ = 69818784.

The previous prime is 90390533. The next prime is 90390577. The reversal of 90390535 is 53509309.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90390535 - 2¹ = 90390533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90390535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90390533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311547 + ... + 311836.

It is an arithmetic number, because the mean of its divisors is an integer number (14026140).

Almost surely, 2^90390535 is an apocalyptic number.

90390535 is a deficient number, since it is larger than the sum of its proper divisors (21818585).

90390535 is a wasteful number, since it uses less digits than its factorization.

90390535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623417.

The product of its (nonzero) digits is 18225, while the sum is 34.

The square root of 90390535 is about 9507.3937017460. The cubic root of 90390535 is about 448.7877413342.

It can be divided in two parts, 90 and 390535, that added together give a 8-th power (390625 = 5⁸).

The spelling of 90390535 in words is "ninety million, three hundred ninety thousand, five hundred thirty-five".