354418693 has 2 divisors, whose sum is σ = 354418694. Its totient is φ = 354418692.

The previous prime is 354418663. The next prime is 354418711. The reversal of 354418693 is 396814453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343249729 + 11168964 = 18527^2 + 3342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354418693 is a prime.

It is a super-2 number, since 2×354418693² = 251225219895656498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354418613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177209346 + 177209347.

It is an arithmetic number, because the mean of its divisors is an integer number (177209347).

Almost surely, 2^354418693 is an apocalyptic number.

It is an amenable number.

354418693 is a deficient number, since it is larger than the sum of its proper divisors (1).

354418693 is an equidigital number, since it uses as much as digits as its factorization.

354418693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The square root of 354418693 is about 18826.0110751056. The cubic root of 354418693 is about 707.6831794788.

The spelling of 354418693 in words is "three hundred fifty-four million, four hundred eighteen thousand, six hundred ninety-three".