1497386887 has 2 divisors, whose sum is σ = 1497386888. Its totient is φ = 1497386886.

The previous prime is 1497386881. The next prime is 1497386909. The reversal of 1497386887 is 7886837941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1497386887 - 2³ = 1497386879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1497386881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748693443 + 748693444.

It is an arithmetic number, because the mean of its divisors is an integer number (748693444).

Almost surely, 2^1497386887 is an apocalyptic number.

1497386887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1497386887 is an equidigital number, since it uses as much as digits as its factorization.

1497386887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16257024, while the sum is 61.

The square root of 1497386887 is about 38696.0836132030. The cubic root of 1497386887 is about 1144.0491300298.

The spelling of 1497386887 in words is "one billion, four hundred ninety-seven million, three hundred eighty-six thousand, eight hundred eighty-seven".