90828771 has 48 divisors (see below), whose sum is σ = 142488192. Its totient is φ = 51429840.

The previous prime is 90828767. The next prime is 90828811. The reversal of 90828771 is 17782809.

It is not a de Polignac number, because 90828771 - 2² = 90828767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90828701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2112276 + ... + 2112318.

It is an arithmetic number, because the mean of its divisors is an integer number (2968504).

Almost surely, 2^90828771 is an apocalyptic number.

90828771 is a deficient number, since it is larger than the sum of its proper divisors (51659421).

90828771 is a wasteful number, since it uses less digits than its factorization.

90828771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 90828771 is about 9530.4129501297. The cubic root of 90828771 is about 449.5118509061.

The spelling of 90828771 in words is "ninety million, eight hundred twenty-eight thousand, seven hundred seventy-one".