7498998917 has 2 divisors, whose sum is σ = 7498998918. Its totient is φ = 7498998916.

The previous prime is 7498998887. The next prime is 7498998931. The reversal of 7498998917 is 7198998947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6229787041 + 1269211876 = 78929^2 + 35626^2 .

It is a cyclic number.

It is not a de Polignac number, because 7498998917 - 2⁶ = 7498998853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7498998817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3749499458 + 3749499459.

It is an arithmetic number, because the mean of its divisors is an integer number (3749499459).

Almost surely, 2^7498998917 is an apocalyptic number.

It is an amenable number.

7498998917 is a deficient number, since it is larger than the sum of its proper divisors (1).

7498998917 is an equidigital number, since it uses as much as digits as its factorization.

7498998917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82301184, while the sum is 71.

The square root of 7498998917 is about 86596.7604301685. The cubic root of 7498998917 is about 1957.3467254327.

The spelling of 7498998917 in words is "seven billion, four hundred ninety-eight million, nine hundred ninety-eight thousand, nine hundred seventeen".