1206967986 has 64 divisors (see below), whose sum is σ = 3075471360. Its totient is φ = 343705680.

The previous prime is 1206967969. The next prime is 1206967991. The reversal of 1206967986 is 6897696021.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112425 + ... + 122691.

It is an arithmetic number, because the mean of its divisors is an integer number (48054240).

Almost surely, 2^1206967986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206967986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1537735680).

1206967986 is an abundant number, since it is smaller than the sum of its proper divisors (1868503374).

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

1206967986 is a wasteful number, since it uses less digits than its factorization.

1206967986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10596 (or 10590 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 1206967986 is about 34741.4447886095. Note that the first 3 decimals coincide. The cubic root of 1206967986 is about 1064.7114314387.

The spelling of 1206967986 in words is "one billion, two hundred six million, nine hundred sixty-seven thousand, nine hundred eighty-six".