3446718421 has 2 divisors, whose sum is σ = 3446718422. Its totient is φ = 3446718420.

The previous prime is 3446718409. The next prime is 3446718437. The reversal of 3446718421 is 1248176443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2610699025 + 836019396 = 51095^2 + 28914^2 .

It is a cyclic number.

It is not a de Polignac number, because 3446718421 - 2⁹ = 3446717909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3446718481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1723359210 + 1723359211.

It is an arithmetic number, because the mean of its divisors is an integer number (1723359211).

Almost surely, 2^3446718421 is an apocalyptic number.

It is an amenable number.

3446718421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3446718421 is an equidigital number, since it uses as much as digits as its factorization.

3446718421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 40.

The square root of 3446718421 is about 58708.7593209054. The cubic root of 3446718421 is about 1510.5505676181.

The spelling of 3446718421 in words is "three billion, four hundred forty-six million, seven hundred eighteen thousand, four hundred twenty-one".