90828271 has 4 divisors (see below), whose sum is σ = 90983592. Its totient is φ = 90672952.

The previous prime is 90828253. The next prime is 90828281. The reversal of 90828271 is 17282809.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17282809 = 1831 ⋅9439.

It is a cyclic number.

It is not a de Polignac number, because 90828271 - 2⁵ = 90828239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90828271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90828211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76780 + ... + 77953.

It is an arithmetic number, because the mean of its divisors is an integer number (22745898).

Almost surely, 2^90828271 is an apocalyptic number.

90828271 is a deficient number, since it is larger than the sum of its proper divisors (155321).

90828271 is a wasteful number, since it uses less digits than its factorization.

90828271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155320.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 90828271 is about 9530.3867182817. The cubic root of 90828271 is about 449.5110260708.

The spelling of 90828271 in words is "ninety million, eight hundred twenty-eight thousand, two hundred seventy-one".