1366598 has 4 divisors (see below), whose sum is σ = 2049900. Its totient is φ = 683298.

The previous prime is 1366597. The next prime is 1366601. The reversal of 1366598 is 8956631.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341648 + ... + 341651.

It is an arithmetic number, because the mean of its divisors is an integer number (512475).

2^1366598 is an apocalyptic number.

1366598 is a deficient number, since it is larger than the sum of its proper divisors (683302).

1366598 is an equidigital number, since it uses as much as digits as its factorization.

1366598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683301.

The product of its digits is 38880, while the sum is 38.

The square root of 1366598 is about 1169.0158253848. The cubic root of 1366598 is about 110.9720460950.

The spelling of 1366598 in words is "one million, three hundred sixty-six thousand, five hundred ninety-eight".