90771266 has 8 divisors (see below), whose sum is σ = 138022284. Its totient is φ = 44763840.

The previous prime is 90771251. The next prime is 90771269. The reversal of 90771266 is 66217709.

It can be written as a sum of positive squares in 2 ways, for example, as 87965641 + 2805625 = 9379^2 + 1675^2 .

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

It is not an unprimeable number, because it can be changed into a prime (90771269) 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, 310715 + ... + 311006.

Almost surely, 2^90771266 is an apocalyptic number.

90771266 is a deficient number, since it is larger than the sum of its proper divisors (47251018).

90771266 is a wasteful number, since it uses less digits than its factorization.

90771266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621796.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 90771266 is about 9527.3955517759. The cubic root of 90771266 is about 449.4169667419.

The spelling of 90771266 in words is "ninety million, seven hundred seventy-one thousand, two hundred sixty-six".