1356797 has 4 divisors (see below), whose sum is σ = 1461180. Its totient is φ = 1252416.

The previous prime is 1356763. The next prime is 1356811. The reversal of 1356797 is 7976531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 606841 + 749956 = 779^2 + 866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1356797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1356797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356727) 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, 52172 + ... + 52197.

It is an arithmetic number, because the mean of its divisors is an integer number (365295).

2^1356797 is an apocalyptic number.

It is an amenable number.

1356797 is a deficient number, since it is larger than the sum of its proper divisors (104383).

1356797 is a wasteful number, since it uses less digits than its factorization.

1356797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104382.

The product of its digits is 39690, while the sum is 38.

The square root of 1356797 is about 1164.8162945289. The cubic root of 1356797 is about 110.7061186979.

The spelling of 1356797 in words is "one million, three hundred fifty-six thousand, seven hundred ninety-seven".