90838761 has 16 divisors (see below), whose sum is σ = 130785984. Its totient is φ = 55750464.

The previous prime is 90838757. The next prime is 90838763. The reversal of 90838761 is 16783809.

It is not a de Polignac number, because 90838761 - 2² = 90838757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90838763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12550 + ... + 18416.

It is an arithmetic number, because the mean of its divisors is an integer number (8174124).

Almost surely, 2^90838761 is an apocalyptic number.

It is an amenable number.

90838761 is a deficient number, since it is larger than the sum of its proper divisors (39947223).

90838761 is a wasteful number, since it uses less digits than its factorization.

90838761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 90838761 is about 9530.9370473212. The cubic root of 90838761 is about 449.5283304816.

The spelling of 90838761 in words is "ninety million, eight hundred thirty-eight thousand, seven hundred sixty-one".