1224987 has 8 divisors (see below), whose sum is σ = 1719360. Its totient is φ = 773640.

The previous prime is 1224983. The next prime is 1224991. The reversal of 1224987 is 7894221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1224983) and next prime (1224991).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1224987 - 2² = 1224983 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1224983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10689 + ... + 10802.

It is an arithmetic number, because the mean of its divisors is an integer number (214920).

2^1224987 is an apocalyptic number.

1224987 is a deficient number, since it is larger than the sum of its proper divisors (494373).

1224987 is a wasteful number, since it uses less digits than its factorization.

1224987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21513.

The product of its digits is 8064, while the sum is 33.

The square root of 1224987 is about 1106.7913082420. The cubic root of 1224987 is about 106.9983695562.

It can be divided in two parts, 1224 and 987, that added together give a triangular number (2211 = T₆₆).

The spelling of 1224987 in words is "one million, two hundred twenty-four thousand, nine hundred eighty-seven".