49128863 has 4 divisors (see below), whose sum is σ = 56147280. Its totient is φ = 42110448.

The previous prime is 49128857. The next prime is 49128869. The reversal of 49128863 is 36882194.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (49128857) and next prime (49128869).

It is a cyclic number.

It is not a de Polignac number, because 49128863 - 2¹² = 49124767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49128863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49128869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3509198 + ... + 3509211.

It is an arithmetic number, because the mean of its divisors is an integer number (14036820).

Almost surely, 2^49128863 is an apocalyptic number.

49128863 is a deficient number, since it is larger than the sum of its proper divisors (7018417).

49128863 is an equidigital number, since it uses as much as digits as its factorization.

49128863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7018416.

The product of its digits is 82944, while the sum is 41.

The square root of 49128863 is about 7009.1984563144. The cubic root of 49128863 is about 366.2510719177.

The spelling of 49128863 in words is "forty-nine million, one hundred twenty-eight thousand, eight hundred sixty-three".