1393807 has 2 divisors, whose sum is σ = 1393808. Its totient is φ = 1393806.

The previous prime is 1393781. The next prime is 1393817. The reversal of 1393807 is 7083931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1393807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1393817) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696903 + 696904.

It is an arithmetic number, because the mean of its divisors is an integer number (696904).

2^1393807 is an apocalyptic number.

1393807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393807 is an equidigital number, since it uses as much as digits as its factorization.

1393807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1393807 is about 1180.5960359073. The cubic root of 1393807 is about 111.7036970329.

The spelling of 1393807 in words is "one million, three hundred ninety-three thousand, eight hundred seven".