356399 has 2 divisors, whose sum is σ = 356400. Its totient is φ = 356398.

The previous prime is 356387. The next prime is 356441. The reversal of 356399 is 993653.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 356399 - 2⁸ = 356143 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 356399.

It is not a weakly prime, because it can be changed into another prime (356299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178199 + 178200.

It is an arithmetic number, because the mean of its divisors is an integer number (178200).

2³⁵⁶³⁹⁹ is an apocalyptic number.

356399 is a deficient number, since it is larger than the sum of its proper divisors (1).

356399 is an equidigital number, since it uses as much as digits as its factorization.

356399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21870, while the sum is 35.

The square root of 356399 is about 596.9916247319. The cubic root of 356399 is about 70.8998787168.

The spelling of 356399 in words is "three hundred fifty-six thousand, three hundred ninety-nine".