49120889 has 2 divisors, whose sum is σ = 49120890. Its totient is φ = 49120888.

The previous prime is 49120873. The next prime is 49120891. The reversal of 49120889 is 98802194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30913600 + 18207289 = 5560^2 + 4267^2 .

It is a cyclic number.

It is not a de Polignac number, because 49120889 - 2⁴ = 49120873 is a prime.

Together with 49120891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49123889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24560444 + 24560445.

It is an arithmetic number, because the mean of its divisors is an integer number (24560445).

Almost surely, 2^49120889 is an apocalyptic number.

It is an amenable number.

49120889 is a deficient number, since it is larger than the sum of its proper divisors (1).

49120889 is an equidigital number, since it uses as much as digits as its factorization.

49120889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 49120889 is about 7008.6296092746. The cubic root of 49120889 is about 366.2312557045.

The spelling of 49120889 in words is "forty-nine million, one hundred twenty thousand, eight hundred eighty-nine".