90086245 has 8 divisors (see below), whose sum is σ = 109318680. Its totient is φ = 71258880.

The previous prime is 90086221. The next prime is 90086251. The reversal of 90086245 is 54268009.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 859329 + 89226916 = 927^2 + 9446^2 .

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

It is not a de Polignac number, because 90086245 - 2¹⁹ = 89561957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90086245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100776 + ... + 101665.

It is an arithmetic number, because the mean of its divisors is an integer number (13664835).

Almost surely, 2^90086245 is an apocalyptic number.

It is an amenable number.

90086245 is a deficient number, since it is larger than the sum of its proper divisors (19232435).

90086245 is a wasteful number, since it uses less digits than its factorization.

90086245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202535.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 90086245 is about 9491.3774026745. The cubic root of 90086245 is about 448.2835766410.

The spelling of 90086245 in words is "ninety million, eighty-six thousand, two hundred forty-five".