1206967987 has 12 divisors (see below), whose sum is σ = 1263520944. Its totient is φ = 1152850160.

The previous prime is 1206967969. The next prime is 1206967991. The reversal of 1206967987 is 7897696021.

It is a de Polignac number, because none of the positive numbers 2^k-1206967987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206967967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 544293 + ... + 546505.

It is an arithmetic number, because the mean of its divisors is an integer number (105293412).

Almost surely, 2^1206967987 is an apocalyptic number.

1206967987 is a deficient number, since it is larger than the sum of its proper divisors (56552957).

1206967987 is a wasteful number, since it uses less digits than its factorization.

1206967987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290 (or 3267 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 55.

The square root of 1206967987 is about 34741.4448030015. Note that the first 3 decimals coincide. The cubic root of 1206967987 is about 1064.7114317327.

The spelling of 1206967987 in words is "one billion, two hundred six million, nine hundred sixty-seven thousand, nine hundred eighty-seven".