346220461 has 2 divisors, whose sum is σ = 346220462. Its totient is φ = 346220460.

The previous prime is 346220447. The next prime is 346220491. The reversal of 346220461 is 164022643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294294025 + 51926436 = 17155^2 + 7206^2 .

It is a cyclic number.

It is not a de Polignac number, because 346220461 - 2⁵ = 346220429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346220401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173110230 + 173110231.

It is an arithmetic number, because the mean of its divisors is an integer number (173110231).

Almost surely, 2^346220461 is an apocalyptic number.

It is an amenable number.

346220461 is a deficient number, since it is larger than the sum of its proper divisors (1).

346220461 is an equidigital number, since it uses as much as digits as its factorization.

346220461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 346220461 is about 18607.0003224593. Note that the first 3 decimals coincide. The cubic root of 346220461 is about 702.1839688241.

The spelling of 346220461 in words is "three hundred forty-six million, two hundred twenty thousand, four hundred sixty-one".