1987413407 has 24 divisors (see below), whose sum is σ = 2453838720. Its totient is φ = 1576022400.

The previous prime is 1987413403. The next prime is 1987413409. The reversal of 1987413407 is 7043147891.

It is not a de Polignac number, because 1987413407 - 2² = 1987413403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1987413401) 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 in 23 ways as a sum of consecutive naturals, for example, 111032 + ... + 127682.

It is an arithmetic number, because the mean of its divisors is an integer number (102243280).

Almost surely, 2^1987413407 is an apocalyptic number.

1987413407 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1987413407 is a deficient number, since it is larger than the sum of its proper divisors (466425313).

1987413407 is a wasteful number, since it uses less digits than its factorization.

1987413407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16751 (or 16734 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1987413407 is about 44580.4150608762. The cubic root of 1987413407 is about 1257.2724670832.

The spelling of 1987413407 in words is "one billion, nine hundred eighty-seven million, four hundred thirteen thousand, four hundred seven".