1393938607 has 2 divisors, whose sum is σ = 1393938608. Its totient is φ = 1393938606.

The previous prime is 1393938593. The next prime is 1393938619. The reversal of 1393938607 is 7068393931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1393938607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1393935607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696969303 + 696969304.

It is an arithmetic number, because the mean of its divisors is an integer number (696969304).

Almost surely, 2^1393938607 is an apocalyptic number.

1393938607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393938607 is an equidigital number, since it uses as much as digits as its factorization.

1393938607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 1393938607 is about 37335.4872339976. The cubic root of 1393938607 is about 1117.0721270997.

The spelling of 1393938607 in words is "one billion, three hundred ninety-three million, nine hundred thirty-eight thousand, six hundred seven".