487157843 has 4 divisors (see below), whose sum is σ = 487953168. Its totient is φ = 486362520.

The previous prime is 487157837. The next prime is 487157939. The reversal of 487157843 is 348751784.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 487157843 - 2¹⁸ = 486895699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487157833) 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 3 ways as a sum of consecutive naturals, for example, 396743 + ... + 397968.

It is an arithmetic number, because the mean of its divisors is an integer number (121988292).

Almost surely, 2^487157843 is an apocalyptic number.

487157843 is a deficient number, since it is larger than the sum of its proper divisors (795325).

487157843 is an equidigital number, since it uses as much as digits as its factorization.

487157843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795324.

The product of its digits is 752640, while the sum is 47.

The square root of 487157843 is about 22071.6524755171. The cubic root of 487157843 is about 786.8462866877.

The spelling of 487157843 in words is "four hundred eighty-seven million, one hundred fifty-seven thousand, eight hundred forty-three".