13213706 has 8 divisors (see below), whose sum is σ = 21622464. Its totient is φ = 6006220.

The previous prime is 13213703. The next prime is 13213747. The reversal of 13213706 is 60731231.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (13213703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300290 + ... + 300333.

It is an arithmetic number, because the mean of its divisors is an integer number (2702808).

Almost surely, 2^13213706 is an apocalyptic number.

13213706 is a deficient number, since it is larger than the sum of its proper divisors (8408758).

13213706 is a wasteful number, since it uses less digits than its factorization.

13213706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600636.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 13213706 is about 3635.0661617088. The cubic root of 13213706 is about 236.4149193280.

Adding to 13213706 its reverse (60731231), we get a palindrome (73944937).

The spelling of 13213706 in words is "thirteen million, two hundred thirteen thousand, seven hundred six".