1379897 has 2 divisors, whose sum is σ = 1379898. Its totient is φ = 1379896.

The previous prime is 1379887. The next prime is 1379923. The reversal of 1379897 is 7989731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1290496 + 89401 = 1136^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 1379897 - 2⁸ = 1379641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1379857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689948 + 689949.

It is an arithmetic number, because the mean of its divisors is an integer number (689949).

2^1379897 is an apocalyptic number.

It is an amenable number.

1379897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379897 is an equidigital number, since it uses as much as digits as its factorization.

1379897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 44.

The square root of 1379897 is about 1174.6901719177. The cubic root of 1379897 is about 111.3308581886.

The spelling of 1379897 in words is "one million, three hundred seventy-nine thousand, eight hundred ninety-seven".