427952987 has 16 divisors (see below), whose sum is σ = 534147072. Its totient is φ = 333097920.

The previous prime is 427952983. The next prime is 427953007. The reversal of 427952987 is 789259724.

It is a cyclic number.

It is not a de Polignac number, because 427952987 - 2² = 427952983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427952983) 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, 81143 + ... + 86255.

It is an arithmetic number, because the mean of its divisors is an integer number (33384192).

Almost surely, 2^427952987 is an apocalyptic number.

427952987 is a deficient number, since it is larger than the sum of its proper divisors (106194085).

427952987 is a wasteful number, since it uses less digits than its factorization.

427952987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218.

The product of its digits is 2540160, while the sum is 53.

The square root of 427952987 is about 20687.0246048097. The cubic root of 427952987 is about 753.5846102054.

The spelling of 427952987 in words is "four hundred twenty-seven million, nine hundred fifty-two thousand, nine hundred eighty-seven".