1216713 has 8 divisors (see below), whose sum is σ = 1627776. Its totient is φ = 808400.

The previous prime is 1216711. The next prime is 1216717. The reversal of 1216713 is 3176121.

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 1216713 - 2¹ = 1216711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1216713.

It is not an unprimeable number, because it can be changed into a prime (1216711) 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, 823 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (203472).

2^1216713 is an apocalyptic number.

It is an amenable number.

1216713 is a deficient number, since it is larger than the sum of its proper divisors (411063).

1216713 is an equidigital number, since it uses as much as digits as its factorization.

1216713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its digits is 252, while the sum is 21.

The square root of 1216713 is about 1103.0471431448. The cubic root of 1216713 is about 106.7569233901.

The spelling of 1216713 in words is "one million, two hundred sixteen thousand, seven hundred thirteen".