49278373 has 2 divisors, whose sum is σ = 49278374. Its totient is φ = 49278372.

The previous prime is 49278371. The next prime is 49278377. The reversal of 49278373 is 37387294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47983329 + 1295044 = 6927^2 + 1138^2 .

It is a cyclic number.

It is not a de Polignac number, because 49278373 - 2¹ = 49278371 is a prime.

Together with 49278371, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49278371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24639186 + 24639187.

It is an arithmetic number, because the mean of its divisors is an integer number (24639187).

Almost surely, 2^49278373 is an apocalyptic number.

It is an amenable number.

49278373 is a deficient number, since it is larger than the sum of its proper divisors (1).

49278373 is an equidigital number, since it uses as much as digits as its factorization.

49278373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 43.

The square root of 49278373 is about 7019.8556252960. The cubic root of 49278373 is about 366.6222233553.

The spelling of 49278373 in words is "forty-nine million, two hundred seventy-eight thousand, three hundred seventy-three".