1047680 has 32 divisors (see below), whose sum is σ = 2506140. Its totient is φ = 418816.

The previous prime is 1047671. The next prime is 1047689. The reversal of 1047680 is 867401.

It is an interprime number because it is at equal distance from previous prime (1047671) and next prime (1047689).

It can be written as a sum of positive squares in 2 ways, for example, as 906304 + 141376 = 952^2 + 376^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1047689) 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 3 ways as a sum of consecutive naturals, for example, 179 + ... + 1458.

2^1047680 is an apocalyptic number.

1047680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1047680 is an abundant number, since it is smaller than the sum of its proper divisors (1458460).

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

1047680 is an equidigital number, since it uses as much as digits as its factorization.

1047680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1047680 is about 1023.5624065000. The cubic root of 1047680 is about 101.5647220816.

The spelling of 1047680 in words is "one million, forty-seven thousand, six hundred eighty".