90826481 has 2 divisors, whose sum is σ = 90826482. Its totient is φ = 90826480.

The previous prime is 90826447. The next prime is 90826493. The reversal of 90826481 is 18462809.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86862400 + 3964081 = 9320^2 + 1991^2 .

It is a cyclic number.

It is not a de Polignac number, because 90826481 - 2¹⁸ = 90564337 is a prime.

It is a super-2 number, since 2×90826481² = 16498899301686722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90826081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45413240 + 45413241.

It is an arithmetic number, because the mean of its divisors is an integer number (45413241).

Almost surely, 2^90826481 is an apocalyptic number.

It is an amenable number.

90826481 is a deficient number, since it is larger than the sum of its proper divisors (1).

90826481 is an equidigital number, since it uses as much as digits as its factorization.

90826481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 90826481 is about 9530.2928076739. The cubic root of 90826481 is about 449.5080731355.

The spelling of 90826481 in words is "ninety million, eight hundred twenty-six thousand, four hundred eighty-one".