393216007 has 2 divisors, whose sum is σ = 393216008. Its totient is φ = 393216006.

The previous prime is 393215989. The next prime is 393216041. The reversal of 393216007 is 700612393.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393216007 is a prime.

It is a super-2 number, since 2×393216007² = 309237656322048098, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 393216007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (393216097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196608003 + 196608004.

It is an arithmetic number, because the mean of its divisors is an integer number (196608004).

Almost surely, 2^393216007 is an apocalyptic number.

393216007 is a deficient number, since it is larger than the sum of its proper divisors (1).

393216007 is an equidigital number, since it uses as much as digits as its factorization.

393216007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 393216007 is about 19829.6749090851. The cubic root of 393216007 is about 732.6171195815.

The spelling of 393216007 in words is "three hundred ninety-three million, two hundred sixteen thousand, seven".