346063621 has 2 divisors, whose sum is σ = 346063622. Its totient is φ = 346063620.

The previous prime is 346063591. The next prime is 346063649. The reversal of 346063621 is 126360643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237591396 + 108472225 = 15414^2 + 10415^2 .

It is a cyclic number.

It is not a de Polignac number, because 346063621 - 2¹³ = 346055429 is a prime.

It is a super-3 number, since 3×346063621³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346063651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173031810 + 173031811.

It is an arithmetic number, because the mean of its divisors is an integer number (173031811).

Almost surely, 2^346063621 is an apocalyptic number.

It is an amenable number.

346063621 is a deficient number, since it is larger than the sum of its proper divisors (1).

346063621 is an equidigital number, since it uses as much as digits as its factorization.

346063621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 346063621 is about 18602.7853022068. The cubic root of 346063621 is about 702.0779215891.

It can be divided in two parts, 3460 and 63621, that added together give a square (67081 = 259²).

The spelling of 346063621 in words is "three hundred forty-six million, sixty-three thousand, six hundred twenty-one".