487231720 has 32 divisors (see below), whose sum is σ = 1098913320. Its totient is φ = 194423040.

The previous prime is 487231709. The next prime is 487231721. The reversal of 487231720 is 27132784.

It can be written as a sum of positive squares in 4 ways, for example, as 232318564 + 254913156 = 15242^2 + 15966^2 .

It is not an unprimeable number, because it can be changed into a prime (487231721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374 + ... + 31306.

Almost surely, 2^487231720 is an apocalyptic number.

487231720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

487231720 is an abundant number, since it is smaller than the sum of its proper divisors (611681600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487231720 is a wasteful number, since it uses less digits than its factorization.

487231720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29365 (or 29361 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 487231720 is about 22073.3259840922. The cubic root of 487231720 is about 786.8860594949.

The spelling of 487231720 in words is "four hundred eighty-seven million, two hundred thirty-one thousand, seven hundred twenty".