415563987 has 16 divisors (see below), whose sum is σ = 569695392. Its totient is φ = 269287680.

The previous prime is 415563979. The next prime is 415564007. The reversal of 415563987 is 789365514.

It is not a de Polignac number, because 415563987 - 2³ = 415563979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (415563787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27973 + ... + 40169.

It is an arithmetic number, because the mean of its divisors is an integer number (35605962).

Almost surely, 2^415563987 is an apocalyptic number.

415563987 is a deficient number, since it is larger than the sum of its proper divisors (154131405).

415563987 is a wasteful number, since it uses less digits than its factorization.

415563987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12518.

The product of its digits is 907200, while the sum is 48.

The square root of 415563987 is about 20385.3866041339. The cubic root of 415563987 is about 746.2413351631.

The spelling of 415563987 in words is "four hundred fifteen million, five hundred sixty-three thousand, nine hundred eighty-seven".