1648627349 has 2 divisors, whose sum is σ = 1648627350. Its totient is φ = 1648627348.

The previous prime is 1648627307. The next prime is 1648627361. The reversal of 1648627349 is 9437268461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1111222225 + 537405124 = 33335^2 + 23182^2 .

It is an emirp because it is prime and its reverse (9437268461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1648627349 - 2¹⁶ = 1648561813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1648627297 and 1648627306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1648627369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824313674 + 824313675.

It is an arithmetic number, because the mean of its divisors is an integer number (824313675).

Almost surely, 2^1648627349 is an apocalyptic number.

It is an amenable number.

1648627349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648627349 is an equidigital number, since it uses as much as digits as its factorization.

1648627349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 50.

The square root of 1648627349 is about 40603.2923418779. The cubic root of 1648627349 is about 1181.3379798267.

The spelling of 1648627349 in words is "one billion, six hundred forty-eight million, six hundred twenty-seven thousand, three hundred forty-nine".