1407823 has 2 divisors, whose sum is σ = 1407824. Its totient is φ = 1407822.

The previous prime is 1407811. The next prime is 1407827. The reversal of 1407823 is 3287041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1407823 is a prime.

It is an Ulam number.

It is equal to p₁₀₇₆₅₆ and since 1407823 and 107656 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1407827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703911 + 703912.

It is an arithmetic number, because the mean of its divisors is an integer number (703912).

2^1407823 is an apocalyptic number.

1407823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1407823 is an equidigital number, since it uses as much as digits as its factorization.

1407823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1407823 is about 1186.5171722314. The cubic root of 1407823 is about 112.0768764294.

The spelling of 1407823 in words is "one million, four hundred seven thousand, eight hundred twenty-three".