45860821 has 2 divisors, whose sum is σ = 45860822. Its totient is φ = 45860820.

The previous prime is 45860791. The next prime is 45860839. The reversal of 45860821 is 12806854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31798321 + 14062500 = 5639^2 + 3750^2 .

It is a cyclic number.

It is not a de Polignac number, because 45860821 - 2⁷ = 45860693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45860891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22930410 + 22930411.

It is an arithmetic number, because the mean of its divisors is an integer number (22930411).

Almost surely, 2^45860821 is an apocalyptic number.

It is an amenable number.

45860821 is a deficient number, since it is larger than the sum of its proper divisors (1).

45860821 is an equidigital number, since it uses as much as digits as its factorization.

45860821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 45860821 is about 6772.0617983004. The cubic root of 45860821 is about 357.9430560782.

The spelling of 45860821 in words is "forty-five million, eight hundred sixty thousand, eight hundred twenty-one".