45643877 has 2 divisors, whose sum is σ = 45643878. Its totient is φ = 45643876.

The previous prime is 45643867. The next prime is 45643901. The reversal of 45643877 is 77834654.

45643877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28718881 + 16924996 = 5359^2 + 4114^2 .

It is a cyclic number.

It is not a de Polignac number, because 45643877 - 2⁶ = 45643813 is a prime.

It is a super-2 number, since 2×45643877² = 4166727015182258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45643867) 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, 22821938 + 22821939.

It is an arithmetic number, because the mean of its divisors is an integer number (22821939).

Almost surely, 2^45643877 is an apocalyptic number.

It is an amenable number.

45643877 is a deficient number, since it is larger than the sum of its proper divisors (1).

45643877 is an equidigital number, since it uses as much as digits as its factorization.

45643877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 44.

The square root of 45643877 is about 6756.0252367794. The cubic root of 45643877 is about 357.3777488006.

The spelling of 45643877 in words is "forty-five million, six hundred forty-three thousand, eight hundred seventy-seven".