90329453 has 2 divisors, whose sum is σ = 90329454. Its totient is φ = 90329452.

The previous prime is 90329399. The next prime is 90329489. The reversal of 90329453 is 35492309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88698724 + 1630729 = 9418^2 + 1277^2 .

It is a cyclic number.

It is not a de Polignac number, because 90329453 - 2⁶ = 90329389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90329053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45164726 + 45164727.

It is an arithmetic number, because the mean of its divisors is an integer number (45164727).

Almost surely, 2^90329453 is an apocalyptic number.

It is an amenable number.

90329453 is a deficient number, since it is larger than the sum of its proper divisors (1).

90329453 is an equidigital number, since it uses as much as digits as its factorization.

90329453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 90329453 is about 9504.1808168826. The cubic root of 90329453 is about 448.6866281298.

The spelling of 90329453 in words is "ninety million, three hundred twenty-nine thousand, four hundred fifty-three".