1498773797 has 2 divisors, whose sum is σ = 1498773798. Its totient is φ = 1498773796.

The previous prime is 1498773769. The next prime is 1498773823. The reversal of 1498773797 is 7973778941.

It is a Cunningham number, because it is equal to 38714²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1498773796 + 1 = 38714^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 1498773797 - 2⁶ = 1498773733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1498773707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749386898 + 749386899.

It is an arithmetic number, because the mean of its divisors is an integer number (749386899).

Almost surely, 2^1498773797 is an apocalyptic number.

It is an amenable number.

1498773797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1498773797 is an equidigital number, since it uses as much as digits as its factorization.

1498773797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18670176, while the sum is 62.

The square root of 1498773797 is about 38714.0000129152. Note that the first 4 decimals coincide. The cubic root of 1498773797 is about 1144.4022348438.

The spelling of 1498773797 in words is "one billion, four hundred ninety-eight million, seven hundred seventy-three thousand, seven hundred ninety-seven".