346664653 has 2 divisors, whose sum is σ = 346664654. Its totient is φ = 346664652.

The previous prime is 346664611. The next prime is 346664657. The reversal of 346664653 is 356466643.

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., 332624644 + 14040009 = 18238^2 + 3747^2 .

It is a cyclic number.

It is not a de Polignac number, because 346664653 - 2²¹ = 344567501 is a prime.

It is a super-2 number, since 2×346664653² = 240352763279220818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346664657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173332326 + 173332327.

It is an arithmetic number, because the mean of its divisors is an integer number (173332327).

Almost surely, 2^346664653 is an apocalyptic number.

It is an amenable number.

346664653 is a deficient number, since it is larger than the sum of its proper divisors (1).

346664653 is an equidigital number, since it uses as much as digits as its factorization.

346664653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 43.

The square root of 346664653 is about 18618.9326493223. The cubic root of 346664653 is about 702.4841351854.

The spelling of 346664653 in words is "three hundred forty-six million, six hundred sixty-four thousand, six hundred fifty-three".