1392497 has 2 divisors, whose sum is σ = 1392498. Its totient is φ = 1392496.

The previous prime is 1392481. The next prime is 1392527. The reversal of 1392497 is 7942931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790321 + 602176 = 889^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 1392497 - 2⁴ = 1392481 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1392407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696248 + 696249.

It is an arithmetic number, because the mean of its divisors is an integer number (696249).

2^1392497 is an apocalyptic number.

It is an amenable number.

1392497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392497 is an equidigital number, since it uses as much as digits as its factorization.

1392497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 1392497 is about 1180.0411009791. The cubic root of 1392497 is about 111.6686903423.

The spelling of 1392497 in words is "one million, three hundred ninety-two thousand, four hundred ninety-seven".