1398097 has 4 divisors (see below), whose sum is σ = 1480356. Its totient is φ = 1315840.

The previous prime is 1398091. The next prime is 1398107. The reversal of 1398097 is 7908931.

1398097 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7908931 = 109 ⋅72559.

It can be written as a sum of positive squares in 2 ways, for example, as 844561 + 553536 = 919^2 + 744^2 .

It is a cyclic number.

It is not a de Polignac number, because 1398097 - 2¹¹ = 1396049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1398091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41104 + ... + 41137.

It is an arithmetic number, because the mean of its divisors is an integer number (370089).

2^1398097 is an apocalyptic number.

1398097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1398097 is a deficient number, since it is larger than the sum of its proper divisors (82259).

1398097 is an equidigital number, since it uses as much as digits as its factorization.

1398097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82258.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1398097 is about 1182.4115188884. The cubic root of 1398097 is about 111.8181839614.

The spelling of 1398097 in words is "one million, three hundred ninety-eight thousand, ninety-seven".