90982517 has 4 divisors (see below), whose sum is σ = 91883436. Its totient is φ = 90081600.

The previous prime is 90982511. The next prime is 90982523. The reversal of 90982517 is 71528909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71528909 = 43 ⋅1663463.

It is an interprime number because it is at equal distance from previous prime (90982511) and next prime (90982523).

It can be written as a sum of positive squares in 2 ways, for example, as 60357361 + 30625156 = 7769^2 + 5534^2 .

It is a cyclic number.

It is not a de Polignac number, because 90982517 - 2⁸ = 90982261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90982511) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 450308 + ... + 450509.

It is an arithmetic number, because the mean of its divisors is an integer number (22970859).

Almost surely, 2^90982517 is an apocalyptic number.

It is an amenable number.

90982517 is a deficient number, since it is larger than the sum of its proper divisors (900919).

90982517 is a wasteful number, since it uses less digits than its factorization.

90982517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900918.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 90982517 is about 9538.4756119623. The cubic root of 90982517 is about 449.7653377338.

The spelling of 90982517 in words is "ninety million, nine hundred eighty-two thousand, five hundred seventeen".