1409655987 has 16 divisors (see below), whose sum is σ = 2097508000. Its totient is φ = 935662752.

The previous prime is 1409655979. The next prime is 1409656009. The reversal of 1409655987 is 7895569041.

1409655987 is a `hidden beast` number, since 1 + 4 + 0 + 9 + 6 + 559 + 87 = 666.

It is not a de Polignac number, because 1409655987 - 2³ = 1409655979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1409655917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107812 + ... + 120177.

It is an arithmetic number, because the mean of its divisors is an integer number (131094250).

Almost surely, 2^1409655987 is an apocalyptic number.

1409655987 is a deficient number, since it is larger than the sum of its proper divisors (687852013).

1409655987 is a wasteful number, since it uses less digits than its factorization.

1409655987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228227 (or 228221 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The square root of 1409655987 is about 37545.3856951823. The cubic root of 1409655987 is about 1121.2549673721.

The spelling of 1409655987 in words is "one billion, four hundred nine million, six hundred fifty-five thousand, nine hundred eighty-seven".