1487828813 has 2 divisors, whose sum is σ = 1487828814. Its totient is φ = 1487828812.

The previous prime is 1487828791. The next prime is 1487828819. The reversal of 1487828813 is 3188287841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1136903524 + 350925289 = 33718^2 + 18733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1487828813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1487828819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743914406 + 743914407.

It is an arithmetic number, because the mean of its divisors is an integer number (743914407).

Almost surely, 2^1487828813 is an apocalyptic number.

It is an amenable number.

1487828813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487828813 is an equidigital number, since it uses as much as digits as its factorization.

1487828813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 688128, while the sum is 50.

The square root of 1487828813 is about 38572.3840720275. The cubic root of 1487828813 is about 1141.6097124790.

The spelling of 1487828813 in words is "one billion, four hundred eighty-seven million, eight hundred twenty-eight thousand, eight hundred thirteen".