1487864 has 24 divisors (see below), whose sum is σ = 3207960. Its totient is φ = 633744.

The previous prime is 1487821. The next prime is 1487867. The reversal of 1487864 is 4687841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1487867) 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 5 ways as a sum of consecutive naturals, for example, 9047 + ... + 9209.

It is an arithmetic number, because the mean of its divisors is an integer number (133665).

2^1487864 is an apocalyptic number.

1487864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1487864 is an abundant number, since it is smaller than the sum of its proper divisors (1720096).

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

1487864 is an equidigital number, since it uses as much as digits as its factorization.

1487864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 172 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 1487864 is about 1219.7803080883. The cubic root of 1487864 is about 114.1618712059.

It can be divided in two parts, 14 and 87864, that multiplied together give a triangular number (1230096 = T₁₅₆₈).

The spelling of 1487864 in words is "one million, four hundred eighty-seven thousand, eight hundred sixty-four".