90827787 has 12 divisors (see below), whose sum is σ = 128647736. Its totient is φ = 56989440.

The previous prime is 90827773. The next prime is 90827819. The reversal of 90827787 is 78772809.

It is not a de Polignac number, because 90827787 - 2¹¹ = 90825739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90827747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51514 + ... + 53247.

Almost surely, 2^90827787 is an apocalyptic number.

90827787 is a deficient number, since it is larger than the sum of its proper divisors (37819949).

90827787 is a wasteful number, since it uses less digits than its factorization.

90827787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104798 (or 104781 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 48.

The square root of 90827787 is about 9530.3613257840. The cubic root of 90827787 is about 449.5102276273.

The spelling of 90827787 in words is "ninety million, eight hundred twenty-seven thousand, seven hundred eighty-seven".