355873897 has 2 divisors, whose sum is σ = 355873898. Its totient is φ = 355873896.

The previous prime is 355873867. The next prime is 355873901. The reversal of 355873897 is 798378553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 348792976 + 7080921 = 18676^2 + 2661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355873897 is a prime.

It is not a weakly prime, because it can be changed into another prime (355873867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177936948 + 177936949.

It is an arithmetic number, because the mean of its divisors is an integer number (177936949).

Almost surely, 2^355873897 is an apocalyptic number.

It is an amenable number.

355873897 is a deficient number, since it is larger than the sum of its proper divisors (1).

355873897 is an equidigital number, since it uses as much as digits as its factorization.

355873897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 55.

The square root of 355873897 is about 18864.6202453164. The cubic root of 355873897 is about 708.6504132177.

The spelling of 355873897 in words is "three hundred fifty-five million, eight hundred seventy-three thousand, eight hundred ninety-seven".