471896987 has 2 divisors, whose sum is σ = 471896988. Its totient is φ = 471896986.

The previous prime is 471896983. The next prime is 471896993. The reversal of 471896987 is 789698174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 471896987 - 2² = 471896983 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (471896983) 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 as a sum of consecutive naturals, namely, 235948493 + 235948494.

It is an arithmetic number, because the mean of its divisors is an integer number (235948494).

Almost surely, 2^471896987 is an apocalyptic number.

471896987 is a deficient number, since it is larger than the sum of its proper divisors (1).

471896987 is an equidigital number, since it uses as much as digits as its factorization.

471896987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 59.

The square root of 471896987 is about 21723.1900742041. The cubic root of 471896987 is about 778.5426365055.

The spelling of 471896987 in words is "four hundred seventy-one million, eight hundred ninety-six thousand, nine hundred eighty-seven".