1393471 has 2 divisors, whose sum is σ = 1393472. Its totient is φ = 1393470.

The previous prime is 1393459. The next prime is 1393489. The reversal of 1393471 is 1743931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1393471 - 2⁹ = 1392959 is a prime.

It is a super-3 number, since 3×1393471³ = 8117364715845078333, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1393451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696735 + 696736.

It is an arithmetic number, because the mean of its divisors is an integer number (696736).

2^1393471 is an apocalyptic number.

1393471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393471 is an equidigital number, since it uses as much as digits as its factorization.

1393471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 28.

The square root of 1393471 is about 1180.4537263273. The cubic root of 1393471 is about 111.6947203098.

The spelling of 1393471 in words is "one million, three hundred ninety-three thousand, four hundred seventy-one".