355947899 has 2 divisors, whose sum is σ = 355947900. Its totient is φ = 355947898.

The previous prime is 355947883. The next prime is 355947913. The reversal of 355947899 is 998749553.

It is a strong prime.

It is an emirp because it is prime and its reverse (998749553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 355947899 - 2⁴ = 355947883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (355907899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177973949 + 177973950.

It is an arithmetic number, because the mean of its divisors is an integer number (177973950).

Almost surely, 2^355947899 is an apocalyptic number.

355947899 is a deficient number, since it is larger than the sum of its proper divisors (1).

355947899 is an equidigital number, since it uses as much as digits as its factorization.

355947899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12247200, while the sum is 59.

The square root of 355947899 is about 18866.5815398551. The cubic root of 355947899 is about 708.6995297857.

The spelling of 355947899 in words is "three hundred fifty-five million, nine hundred forty-seven thousand, eight hundred ninety-nine".