355924949 has 2 divisors, whose sum is σ = 355924950. Its totient is φ = 355924948.

The previous prime is 355924939. The next prime is 355924951. The reversal of 355924949 is 949429553.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255424324 + 100500625 = 15982^2 + 10025^2 .

It is an emirp because it is prime and its reverse (949429553) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355924949 is a prime.

Together with 355924951, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 355924897 and 355924906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355924939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177962474 + 177962475.

It is an arithmetic number, because the mean of its divisors is an integer number (177962475).

Almost surely, 2^355924949 is an apocalyptic number.

It is an amenable number.

355924949 is a deficient number, since it is larger than the sum of its proper divisors (1).

355924949 is an equidigital number, since it uses as much as digits as its factorization.

355924949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1749600, while the sum is 50.

The square root of 355924949 is about 18865.9733117589. The cubic root of 355924949 is about 708.6842981522.

The spelling of 355924949 in words is "three hundred fifty-five million, nine hundred twenty-four thousand, nine hundred forty-nine".