49314721 has 2 divisors, whose sum is σ = 49314722. Its totient is φ = 49314720.

The previous prime is 49314719. The next prime is 49314743. The reversal of 49314721 is 12741394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49000000 + 314721 = 7000^2 + 561^2 .

It is a cyclic number.

It is not a de Polignac number, because 49314721 - 2¹ = 49314719 is a prime.

Together with 49314719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49314791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24657360 + 24657361.

It is an arithmetic number, because the mean of its divisors is an integer number (24657361).

Almost surely, 2^49314721 is an apocalyptic number.

It is an amenable number.

49314721 is a deficient number, since it is larger than the sum of its proper divisors (1).

49314721 is an equidigital number, since it uses as much as digits as its factorization.

49314721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 49314721 is about 7022.4440902011. Note that the first 3 decimals coincide. The cubic root of 49314721 is about 366.7123420602.

It can be divided in two parts, 49 and 314721, that multiplied together give a square (15421329 = 3927²).

The spelling of 49314721 in words is "forty-nine million, three hundred fourteen thousand, seven hundred twenty-one".