356340623 has 2 divisors, whose sum is σ = 356340624. Its totient is φ = 356340622.

The previous prime is 356340619. The next prime is 356340631. The reversal of 356340623 is 326043653.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 356340623 - 2² = 356340619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 356340623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (356340643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178170311 + 178170312.

It is an arithmetic number, because the mean of its divisors is an integer number (178170312).

Almost surely, 2^356340623 is an apocalyptic number.

356340623 is a deficient number, since it is larger than the sum of its proper divisors (1).

356340623 is an equidigital number, since it uses as much as digits as its factorization.

356340623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 32.

The square root of 356340623 is about 18876.9865974419. The cubic root of 356340623 is about 708.9600744870.

The spelling of 356340623 in words is "three hundred fifty-six million, three hundred forty thousand, six hundred twenty-three".