49128323 has 2 divisors, whose sum is σ = 49128324. Its totient is φ = 49128322.

The previous prime is 49128311. The next prime is 49128347. The reversal of 49128323 is 32382194.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49128323 - 2⁸ = 49128067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49128323.

It is not a weakly prime, because it can be changed into another prime (49128383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24564161 + 24564162.

It is an arithmetic number, because the mean of its divisors is an integer number (24564162).

Almost surely, 2^49128323 is an apocalyptic number.

49128323 is a deficient number, since it is larger than the sum of its proper divisors (1).

49128323 is an equidigital number, since it uses as much as digits as its factorization.

49128323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 49128323 is about 7009.1599353988. The cubic root of 49128323 is about 366.2497300297.

The spelling of 49128323 in words is "forty-nine million, one hundred twenty-eight thousand, three hundred twenty-three".