13206870 has 24 divisors (see below), whose sum is σ = 34338096. Its totient is φ = 3521808.

The previous prime is 13206847. The next prime is 13206871. The reversal of 13206870 is 7860231.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13206871) 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 11 ways as a sum of consecutive naturals, for example, 73282 + ... + 73461.

It is an arithmetic number, because the mean of its divisors is an integer number (1430754).

Almost surely, 2^13206870 is an apocalyptic number.

13206870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13206870 is an abundant number, since it is smaller than the sum of its proper divisors (21131226).

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

13206870 is a wasteful number, since it uses less digits than its factorization.

13206870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146756 (or 146753 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 13206870 is about 3634.1257545660. The cubic root of 13206870 is about 236.3741432034.

The spelling of 13206870 in words is "thirteen million, two hundred six thousand, eight hundred seventy".