90852281 has 8 divisors (see below), whose sum is σ = 102990720. Its totient is φ = 79449552.

The previous prime is 90852257. The next prime is 90852313. The reversal of 90852281 is 18225809.

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

It is not a de Polignac number, because 90852281 - 2¹⁴ = 90835897 is a prime.

It is a super-2 number, since 2×90852281² = 16508273925805922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90852781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183665 + ... + 184158.

It is an arithmetic number, because the mean of its divisors is an integer number (12873840).

Almost surely, 2^90852281 is an apocalyptic number.

It is an amenable number.

90852281 is a deficient number, since it is larger than the sum of its proper divisors (12138439).

90852281 is a wasteful number, since it uses less digits than its factorization.

90852281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367855.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 90852281 is about 9531.6462901222. The cubic root of 90852281 is about 449.5506312464.

The spelling of 90852281 in words is "ninety million, eight hundred fifty-two thousand, two hundred eighty-one".