43602649 has 2 divisors, whose sum is σ = 43602650. Its totient is φ = 43602648.

The previous prime is 43602619. The next prime is 43602653. The reversal of 43602649 is 94620634.

43602649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42994249 + 608400 = 6557^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 43602649 - 2⁹ = 43602137 is a prime.

It is equal to p_2638861 and since 43602649 and 2638861 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (43602619) 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, 21801324 + 21801325.

It is an arithmetic number, because the mean of its divisors is an integer number (21801325).

Almost surely, 2^43602649 is an apocalyptic number.

It is an amenable number.

43602649 is a deficient number, since it is larger than the sum of its proper divisors (1).

43602649 is an equidigital number, since it uses as much as digits as its factorization.

43602649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 43602649 is about 6603.2301943821. The cubic root of 43602649 is about 351.9689005970.

The spelling of 43602649 in words is "forty-three million, six hundred two thousand, six hundred forty-nine".