90770065 has 16 divisors (see below), whose sum is σ = 112230720. Its totient is φ = 70424640.

The previous prime is 90770063. The next prime is 90770083. The reversal of 90770065 is 56007709.

It is not a de Polignac number, because 90770065 - 2¹ = 90770063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90770065.

It is not an unprimeable number, because it can be changed into a prime (90770063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76930 + ... + 78100.

It is an arithmetic number, because the mean of its divisors is an integer number (7014420).

Almost surely, 2^90770065 is an apocalyptic number.

It is an amenable number.

90770065 is a deficient number, since it is larger than the sum of its proper divisors (21460655).

90770065 is a wasteful number, since it uses less digits than its factorization.

90770065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 90770065 is about 9527.3325227999. The cubic root of 90770065 is about 449.4149846456.

The spelling of 90770065 in words is "ninety million, seven hundred seventy thousand, sixty-five".