346360921 has 2 divisors, whose sum is σ = 346360922. Its totient is φ = 346360920.

The previous prime is 346360919. The next prime is 346360957. The reversal of 346360921 is 129063643.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345550921 + 810000 = 18589^2 + 900^2 .

It is a cyclic number.

It is not a de Polignac number, because 346360921 - 2¹ = 346360919 is a prime.

Together with 346360919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (346360121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173180460 + 173180461.

It is an arithmetic number, because the mean of its divisors is an integer number (173180461).

Almost surely, 2^346360921 is an apocalyptic number.

It is an amenable number.

346360921 is a deficient number, since it is larger than the sum of its proper divisors (1).

346360921 is an equidigital number, since it uses as much as digits as its factorization.

346360921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 346360921 is about 18610.7743256427. The cubic root of 346360921 is about 702.2789135550.

The spelling of 346360921 in words is "three hundred forty-six million, three hundred sixty thousand, nine hundred twenty-one".