487236479 has 2 divisors, whose sum is σ = 487236480. Its totient is φ = 487236478.

The previous prime is 487236443. The next prime is 487236481. The reversal of 487236479 is 974632784.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487236479 is a prime.

Together with 487236481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487236679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243618239 + 243618240.

It is an arithmetic number, because the mean of its divisors is an integer number (243618240).

Almost surely, 2^487236479 is an apocalyptic number.

487236479 is a deficient number, since it is larger than the sum of its proper divisors (1).

487236479 is an equidigital number, since it uses as much as digits as its factorization.

487236479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 50.

The square root of 487236479 is about 22073.4337836232. The cubic root of 487236479 is about 786.8886214372. Note that the first 3 decimals are identical.

The spelling of 487236479 in words is "four hundred eighty-seven million, two hundred thirty-six thousand, four hundred seventy-nine".