45643867 has 2 divisors, whose sum is σ = 45643868. Its totient is φ = 45643866.

The previous prime is 45643849. The next prime is 45643877. The reversal of 45643867 is 76834654.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45643867 - 2¹⁵ = 45611099 is a prime.

It is not a weakly prime, because it can be changed into another prime (45643877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22821933 + 22821934.

It is an arithmetic number, because the mean of its divisors is an integer number (22821934).

Almost surely, 2^45643867 is an apocalyptic number.

45643867 is a deficient number, since it is larger than the sum of its proper divisors (1).

45643867 is an equidigital number, since it uses as much as digits as its factorization.

45643867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 43.

The square root of 45643867 is about 6756.0244966992. The cubic root of 45643867 is about 357.3777227016.

The spelling of 45643867 in words is "forty-five million, six hundred forty-three thousand, eight hundred sixty-seven".