94490521 has 2 divisors, whose sum is σ = 94490522. Its totient is φ = 94490520.

The previous prime is 94490491. The next prime is 94490531. The reversal of 94490521 is 12509449.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74563225 + 19927296 = 8635^2 + 4464^2 .

It is a cyclic number.

It is not a de Polignac number, because 94490521 - 2¹¹ = 94488473 is a prime.

It is not a weakly prime, because it can be changed into another prime (94490531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47245260 + 47245261.

It is an arithmetic number, because the mean of its divisors is an integer number (47245261).

Almost surely, 2^94490521 is an apocalyptic number.

It is an amenable number.

94490521 is a deficient number, since it is larger than the sum of its proper divisors (1).

94490521 is an equidigital number, since it uses as much as digits as its factorization.

94490521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 94490521 is about 9720.6234882337. The cubic root of 94490521 is about 455.4731157341.

The spelling of 94490521 in words is "ninety-four million, four hundred ninety thousand, five hundred twenty-one".