5405999 has 2 divisors, whose sum is σ = 5406000. Its totient is φ = 5405998.

The previous prime is 5405971. The next prime is 5406007. The reversal of 5405999 is 9995045.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5405999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5405969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2702999 + 2703000.

It is an arithmetic number, because the mean of its divisors is an integer number (2703000).

Almost surely, 2^5405999 is an apocalyptic number.

5405999 is a deficient number, since it is larger than the sum of its proper divisors (1).

5405999 is an equidigital number, since it uses as much as digits as its factorization.

5405999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 5405999 is about 2325.0804287164. The cubic root of 5405999 is about 175.5060075919.

The spelling of 5405999 in words is "five million, four hundred five thousand, nine hundred ninety-nine".