1287974 has 16 divisors (see below), whose sum is σ = 2010960. Its totient is φ = 618240.

The previous prime is 1287973. The next prime is 1287983. The reversal of 1287974 is 4797821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287973) 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 7 ways as a sum of consecutive naturals, for example, 9197 + ... + 9335.

It is an arithmetic number, because the mean of its divisors is an integer number (125685).

2^1287974 is an apocalyptic number.

1287974 is a deficient number, since it is larger than the sum of its proper divisors (722986).

1287974 is a wasteful number, since it uses less digits than its factorization.

1287974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295.

The product of its digits is 28224, while the sum is 38.

The square root of 1287974 is about 1134.8894219262. The cubic root of 1287974 is about 108.8017043959.

The spelling of 1287974 in words is "one million, two hundred eighty-seven thousand, nine hundred seventy-four".