487391794 has 8 divisors (see below), whose sum is σ = 731870748. Its totient is φ = 243434880.

The previous prime is 487391771. The next prime is 487391809. The reversal of 487391794 is 497193784.

It can be written as a sum of positive squares in 2 ways, for example, as 374925769 + 112466025 = 19363^2 + 10605^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 128167 + ... + 131914.

Almost surely, 2^487391794 is an apocalyptic number.

487391794 is a deficient number, since it is larger than the sum of its proper divisors (244478954).

487391794 is a wasteful number, since it uses less digits than its factorization.

487391794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261020.

The product of its digits is 1524096, while the sum is 52.

The square root of 487391794 is about 22076.9516464570. The cubic root of 487391794 is about 786.9722239777.

The spelling of 487391794 in words is "four hundred eighty-seven million, three hundred ninety-one thousand, seven hundred ninety-four".