49643623 has 2 divisors, whose sum is σ = 49643624. Its totient is φ = 49643622.

The previous prime is 49643611. The next prime is 49643639. The reversal of 49643623 is 32634694.

49643623 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49643623 is a prime.

It is a super-2 number, since 2×49643623² = 4928978609132258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49649623) 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, 24821811 + 24821812.

It is an arithmetic number, because the mean of its divisors is an integer number (24821812).

Almost surely, 2^49643623 is an apocalyptic number.

49643623 is a deficient number, since it is larger than the sum of its proper divisors (1).

49643623 is an equidigital number, since it uses as much as digits as its factorization.

49643623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 37.

The square root of 49643623 is about 7045.8230888946. The cubic root of 49643623 is about 367.5257926889.

The spelling of 49643623 in words is "forty-nine million, six hundred forty-three thousand, six hundred twenty-three".