487944864 has 96 divisors (see below), whose sum is σ = 1552582080. Its totient is φ = 147859200.

The previous prime is 487944859. The next prime is 487944869. The reversal of 487944864 is 468449784.

It is an interprime number because it is at equal distance from previous prime (487944859) and next prime (487944869).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 487944864.

It is not an unprimeable number, because it can be changed into a prime (487944869) 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 15 ways as a sum of consecutive naturals, for example, 16167 + ... + 35174.

It is an arithmetic number, because the mean of its divisors is an integer number (16172730).

Almost surely, 2^487944864 is an apocalyptic number.

487944864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

487944864 is an abundant number, since it is smaller than the sum of its proper divisors (1064637216).

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

487944864 is a wasteful number, since it uses less digits than its factorization.

487944864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51371 (or 51357 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The square root of 487944864 is about 22089.4740543998. The cubic root of 487944864 is about 787.2697848604.

The spelling of 487944864 in words is "four hundred eighty-seven million, nine hundred forty-four thousand, eight hundred sixty-four".