1357823 has 2 divisors, whose sum is σ = 1357824. Its totient is φ = 1357822.

The previous prime is 1357817. The next prime is 1357843. The reversal of 1357823 is 3287531.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1357823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1357843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678911 + 678912.

It is an arithmetic number, because the mean of its divisors is an integer number (678912).

2^1357823 is an apocalyptic number.

1357823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1357823 is an equidigital number, since it uses as much as digits as its factorization.

1357823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 1357823 is about 1165.2566240962. The cubic root of 1357823 is about 110.7340167203.

The spelling of 1357823 in words is "one million, three hundred fifty-seven thousand, eight hundred twenty-three".