1230987 has 8 divisors (see below), whose sum is σ = 1737936. Its totient is φ = 772352.

The previous prime is 1230967. The next prime is 1230997. The reversal of 1230987 is 7890321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1230987 - 2¹² = 1226891 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1230907) 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, 12018 + ... + 12119.

It is an arithmetic number, because the mean of its divisors is an integer number (217242).

2^1230987 is an apocalyptic number.

1230987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1230987 is a deficient number, since it is larger than the sum of its proper divisors (506949).

1230987 is a wasteful number, since it uses less digits than its factorization.

1230987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24157.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1230987 is about 1109.4985353753. The cubic root of 1230987 is about 107.1727781831.

The spelling of 1230987 in words is "one million, two hundred thirty thousand, nine hundred eighty-seven".