353402197 has 2 divisors, whose sum is σ = 353402198. Its totient is φ = 353402196.

The previous prime is 353402191. The next prime is 353402209. The reversal of 353402197 is 791204353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333026001 + 20376196 = 18249^2 + 4514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-353402197 is a prime.

It is a super-2 number, since 2×353402197² = 249786225688853618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (353402191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176701098 + 176701099.

It is an arithmetic number, because the mean of its divisors is an integer number (176701099).

Almost surely, 2^353402197 is an apocalyptic number.

It is an amenable number.

353402197 is a deficient number, since it is larger than the sum of its proper divisors (1).

353402197 is an equidigital number, since it uses as much as digits as its factorization.

353402197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 353402197 is about 18798.9945741787. The cubic root of 353402197 is about 707.0059710862.

The spelling of 353402197 in words is "three hundred fifty-three million, four hundred two thousand, one hundred ninety-seven".