1393216207 has 2 divisors, whose sum is σ = 1393216208. Its totient is φ = 1393216206.

The previous prime is 1393216189. The next prime is 1393216259. The reversal of 1393216207 is 7026123931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1393216207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1393216267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696608103 + 696608104.

It is an arithmetic number, because the mean of its divisors is an integer number (696608104).

Almost surely, 2^1393216207 is an apocalyptic number.

1393216207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393216207 is an equidigital number, since it uses as much as digits as its factorization.

1393216207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 1393216207 is about 37325.8115383979. The cubic root of 1393216207 is about 1116.8791218641.

The spelling of 1393216207 in words is "one billion, three hundred ninety-three million, two hundred sixteen thousand, two hundred seven".