49872643 has 2 divisors, whose sum is σ = 49872644. Its totient is φ = 49872642.

The previous prime is 49872637. The next prime is 49872653. The reversal of 49872643 is 34627894.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49872643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49872643.

It is not a weakly prime, because it can be changed into another prime (49872653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24936321 + 24936322.

It is an arithmetic number, because the mean of its divisors is an integer number (24936322).

Almost surely, 2^49872643 is an apocalyptic number.

49872643 is a deficient number, since it is larger than the sum of its proper divisors (1).

49872643 is an equidigital number, since it uses as much as digits as its factorization.

49872643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 49872643 is about 7062.0565701501. The cubic root of 49872643 is about 368.0900924467.

The spelling of 49872643 in words is "forty-nine million, eight hundred seventy-two thousand, six hundred forty-three".