3446621389 has 2 divisors, whose sum is σ = 3446621390. Its totient is φ = 3446621388.

The previous prime is 3446621383. The next prime is 3446621419. The reversal of 3446621389 is 9831266443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2868459364 + 578162025 = 53558^2 + 24045^2 .

It is a cyclic number.

It is not a de Polignac number, because 3446621389 - 2¹⁹ = 3446097101 is a prime.

It is a super-2 number, since 2×3446621389² = 23758397998224578642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3446621383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1723310694 + 1723310695.

It is an arithmetic number, because the mean of its divisors is an integer number (1723310695).

Almost surely, 2^3446621389 is an apocalyptic number.

It is an amenable number.

3446621389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3446621389 is an equidigital number, since it uses as much as digits as its factorization.

3446621389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 46.

The square root of 3446621389 is about 58707.9329307377. The cubic root of 3446621389 is about 1510.5363924811.

It can be divided in two parts, 34466 and 21389, that added together give a palindrome (55855).

The spelling of 3446621389 in words is "three billion, four hundred forty-six million, six hundred twenty-one thousand, three hundred eighty-nine".