90046321 has 2 divisors, whose sum is σ = 90046322. Its totient is φ = 90046320.

The previous prime is 90046267. The next prime is 90046367. The reversal of 90046321 is 12364009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87609600 + 2436721 = 9360^2 + 1561^2 .

It is a cyclic number.

It is not a de Polignac number, because 90046321 - 2⁷ = 90046193 is a prime.

It is not a weakly prime, because it can be changed into another prime (90046391) 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 as a sum of consecutive naturals, namely, 45023160 + 45023161.

It is an arithmetic number, because the mean of its divisors is an integer number (45023161).

Almost surely, 2^90046321 is an apocalyptic number.

It is an amenable number.

90046321 is a deficient number, since it is larger than the sum of its proper divisors (1).

90046321 is an equidigital number, since it uses as much as digits as its factorization.

90046321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 90046321 is about 9489.2739975195. The cubic root of 90046321 is about 448.2173441174.

The spelling of 90046321 in words is "ninety million, forty-six thousand, three hundred twenty-one".