356214421 has 2 divisors, whose sum is σ = 356214422. Its totient is φ = 356214420.

The previous prime is 356214407. The next prime is 356214487. The reversal of 356214421 is 124412653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298909521 + 57304900 = 17289^2 + 7570^2 .

It is an emirp because it is prime and its reverse (124412653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 356214421 - 2⁹ = 356213909 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 356214421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (356214491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178107210 + 178107211.

It is an arithmetic number, because the mean of its divisors is an integer number (178107211).

Almost surely, 2^356214421 is an apocalyptic number.

It is an amenable number.

356214421 is a deficient number, since it is larger than the sum of its proper divisors (1).

356214421 is an equidigital number, since it uses as much as digits as its factorization.

356214421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 28.

The square root of 356214421 is about 18873.6435539087. The cubic root of 356214421 is about 708.8763692359.

The spelling of 356214421 in words is "three hundred fifty-six million, two hundred fourteen thousand, four hundred twenty-one".