1207980 has 48 divisors (see below), whose sum is σ = 3759840. Its totient is φ = 321984.

The previous prime is 1207979. The next prime is 1207981. The reversal of 1207980 is 897021.

It is an interprime number because it is at equal distance from previous prime (1207979) and next prime (1207981).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1207981) 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 15 ways as a sum of consecutive naturals, for example, 579 + ... + 1658.

It is an arithmetic number, because the mean of its divisors is an integer number (78330).

2^1207980 is an apocalyptic number.

1207980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1207980 is an abundant number, since it is smaller than the sum of its proper divisors (2551860).

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

1207980 is a wasteful number, since it uses less digits than its factorization.

1207980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255 (or 2247 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1207980 is about 1099.0814346535. The cubic root of 1207980 is about 106.5008926725.

It can be divided in two parts, 1207 and 980, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1207980 in words is "one million, two hundred seven thousand, nine hundred eighty".