90518849 has 4 divisors (see below), whose sum is σ = 90720900. Its totient is φ = 90317248.

The previous prime is 90518837. The next prime is 90518861. The reversal of 90518849 is 94881509.

The cubic root of 90518849 is 449.

It is a perfect power (a cube), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (90518837) and next prime (90518861).

It can be written as a sum of positive squares in 2 ways, for example, as 25603600 + 64915249 = 5060^2 + 8057^2 .

It is not a de Polignac number, because 90518849 - 2²⁰ = 89470273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90518819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201377 + ... + 201825.

It is an arithmetic number, because the mean of its divisors is an integer number (22680225).

Almost surely, 2^90518849 is an apocalyptic number.

It is an amenable number.

90518849 is a deficient number, since it is larger than the sum of its proper divisors (202051).

90518849 is an frugal number, since it uses more digits than its factorization.

90518849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 90518849 is about 9514.1394250873.

The spelling of 90518849 in words is "ninety million, five hundred eighteen thousand, eight hundred forty-nine".