487215238 has 4 divisors (see below), whose sum is σ = 730822860. Its totient is φ = 243607618.

The previous prime is 487215217. The next prime is 487215269. The reversal of 487215238 is 832512784.

It is a happy number.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 487215238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121803808 + ... + 121803811.

It is an arithmetic number, because the mean of its divisors is an integer number (182705715).

Almost surely, 2^487215238 is an apocalyptic number.

487215238 is a deficient number, since it is larger than the sum of its proper divisors (243607622).

487215238 is a wasteful number, since it uses less digits than its factorization.

487215238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243607621.

The product of its digits is 107520, while the sum is 40.

The square root of 487215238 is about 22072.9526343894. The cubic root of 487215238 is about 786.8771865078.

The spelling of 487215238 in words is "four hundred eighty-seven million, two hundred fifteen thousand, two hundred thirty-eight".