1487985 has 32 divisors (see below), whose sum is σ = 2626560. Its totient is φ = 715968.

The previous prime is 1487977. The next prime is 1487987. The reversal of 1487985 is 5897841.

It is not a de Polignac number, because 1487985 - 2³ = 1487977 is a prime.

1487985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1487987) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 6442 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2^1487985 is an apocalyptic number.

1487985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1487985 is a deficient number, since it is larger than the sum of its proper divisors (1138575).

1487985 is a wasteful number, since it uses less digits than its factorization.

1487985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its digits is 80640, while the sum is 42.

The square root of 1487985 is about 1219.8299061754. The cubic root of 1487985 is about 114.1649658463.

The spelling of 1487985 in words is "one million, four hundred eighty-seven thousand, nine hundred eighty-five".