1598703949 has 2 divisors, whose sum is σ = 1598703950. Its totient is φ = 1598703948.

The previous prime is 1598703917. The next prime is 1598703971. The reversal of 1598703949 is 9493078951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1311164100 + 287539849 = 36210^2 + 16957^2 .

It is a cyclic number.

It is not a de Polignac number, because 1598703949 - 2⁵ = 1598703917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1598703949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1598703979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 799351974 + 799351975.

It is an arithmetic number, because the mean of its divisors is an integer number (799351975).

Almost surely, 2^1598703949 is an apocalyptic number.

It is an amenable number.

1598703949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1598703949 is an equidigital number, since it uses as much as digits as its factorization.

1598703949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The square root of 1598703949 is about 39983.7960804124. The cubic root of 1598703949 is about 1169.2912036329.

The spelling of 1598703949 in words is "one billion, five hundred ninety-eight million, seven hundred three thousand, nine hundred forty-nine".