427863887 has 16 divisors (see below), whose sum is σ = 471018240. Its totient is φ = 385440000.

The previous prime is 427863881. The next prime is 427863899. The reversal of 427863887 is 788368724.

It is not a de Polignac number, because 427863887 - 2¹⁰ = 427862863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427863881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974414 + ... + 974852.

It is an arithmetic number, because the mean of its divisors is an integer number (29438640).

Almost surely, 2^427863887 is an apocalyptic number.

427863887 is a deficient number, since it is larger than the sum of its proper divisors (43154353).

427863887 is a wasteful number, since it uses less digits than its factorization.

427863887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its digits is 3612672, while the sum is 53.

The square root of 427863887 is about 20684.8709688990. The cubic root of 427863887 is about 753.5323076930.

The spelling of 427863887 in words is "four hundred twenty-seven million, eight hundred sixty-three thousand, eight hundred eighty-seven".