1487828791 has 2 divisors, whose sum is σ = 1487828792. Its totient is φ = 1487828790.

The previous prime is 1487828743. The next prime is 1487828813. The reversal of 1487828791 is 1978287841.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1487828791 is a prime.

It is a super-2 number, since 2×1487828791² = 4427269022657043362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1487828711) 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, 743914395 + 743914396.

It is an arithmetic number, because the mean of its divisors is an integer number (743914396).

Almost surely, 2^1487828791 is an apocalyptic number.

1487828791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487828791 is an equidigital number, since it uses as much as digits as its factorization.

1487828791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1806336, while the sum is 55.

The square root of 1487828791 is about 38572.3837868494. The cubic root of 1487828791 is about 1141.6097068521.

The spelling of 1487828791 in words is "one billion, four hundred eighty-seven million, eight hundred twenty-eight thousand, seven hundred ninety-one".