1738898849 has 2 divisors, whose sum is σ = 1738898850. Its totient is φ = 1738898848.

The previous prime is 1738898813. The next prime is 1738898893. The reversal of 1738898849 is 9488988371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1515934225 + 222964624 = 38935^2 + 14932^2 .

It is an emirp because it is prime and its reverse (9488988371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1738898849 - 2¹² = 1738894753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1738898149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 869449424 + 869449425.

It is an arithmetic number, because the mean of its divisors is an integer number (869449425).

Almost surely, 2^1738898849 is an apocalyptic number.

It is an amenable number.

1738898849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1738898849 is an equidigital number, since it uses as much as digits as its factorization.

1738898849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27869184, while the sum is 65.

The square root of 1738898849 is about 41700.1061029825. The cubic root of 1738898849 is about 1202.5175961107.

The spelling of 1738898849 in words is "one billion, seven hundred thirty-eight million, eight hundred ninety-eight thousand, eight hundred forty-nine".