356426321 has 2 divisors, whose sum is σ = 356426322. Its totient is φ = 356426320.

The previous prime is 356426201. The next prime is 356426341. The reversal of 356426321 is 123624653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215766721 + 140659600 = 14689^2 + 11860^2 .

It is an emirp because it is prime and its reverse (123624653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 356426321 - 2²² = 352232017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (356426341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178213160 + 178213161.

It is an arithmetic number, because the mean of its divisors is an integer number (178213161).

Almost surely, 2^356426321 is an apocalyptic number.

It is an amenable number.

356426321 is a deficient number, since it is larger than the sum of its proper divisors (1).

356426321 is an equidigital number, since it uses as much as digits as its factorization.

356426321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 32.

The square root of 356426321 is about 18879.2563677704. The cubic root of 356426321 is about 709.0169036243.

The spelling of 356426321 in words is "three hundred fifty-six million, four hundred twenty-six thousand, three hundred twenty-one".