1385437 has 2 divisors, whose sum is σ = 1385438. Its totient is φ = 1385436.

The previous prime is 1385429. The next prime is 1385441. The reversal of 1385437 is 7345831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1279161 + 106276 = 1131^2 + 326^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385437 - 2³ = 1385429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1385399 and 1385408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692718 + 692719.

It is an arithmetic number, because the mean of its divisors is an integer number (692719).

2^1385437 is an apocalyptic number.

It is an amenable number.

1385437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385437 is an equidigital number, since it uses as much as digits as its factorization.

1385437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 1385437 is about 1177.0458784601. The cubic root of 1385437 is about 111.4796493388.

The spelling of 1385437 in words is "one million, three hundred eighty-five thousand, four hundred thirty-seven".