1393963 has 2 divisors, whose sum is σ = 1393964. Its totient is φ = 1393962.

The previous prime is 1393957. The next prime is 1393967. The reversal of 1393963 is 3693931.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1393963 - 2⁹ = 1393451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1393967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696981 + 696982.

It is an arithmetic number, because the mean of its divisors is an integer number (696982).

2^1393963 is an apocalyptic number.

1393963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393963 is an equidigital number, since it uses as much as digits as its factorization.

1393963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13122, while the sum is 34.

The square root of 1393963 is about 1180.6621023815. The cubic root of 1393963 is about 111.7078643068.

Subtracting 1393963 from its reverse (3693931), we obtain a cube (2299968 = 132³).

The spelling of 1393963 in words is "one million, three hundred ninety-three thousand, nine hundred sixty-three".