90758665 has 8 divisors (see below), whose sum is σ = 115317000. Its totient is φ = 68335872.

The previous prime is 90758663. The next prime is 90758677. The reversal of 90758665 is 56685709.

It can be written as a sum of positive squares in 4 ways, for example, as 16867449 + 73891216 = 4107^2 + 8596^2 .

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 90758665 - 2¹ = 90758663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90758663) 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 7 ways as a sum of consecutive naturals, for example, 533790 + ... + 533959.

It is an arithmetic number, because the mean of its divisors is an integer number (14414625).

Almost surely, 2^90758665 is an apocalyptic number.

It is an amenable number.

90758665 is a deficient number, since it is larger than the sum of its proper divisors (24558335).

90758665 is a wasteful number, since it uses less digits than its factorization.

90758665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067771.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 90758665 is about 9526.7342253261. The cubic root of 90758665 is about 449.3961695391.

The spelling of 90758665 in words is "ninety million, seven hundred fifty-eight thousand, six hundred sixty-five".