3643423061 has 2 divisors, whose sum is σ = 3643423062. Its totient is φ = 3643423060.

The previous prime is 3643423019. The next prime is 3643423079. The reversal of 3643423061 is 1603243463.

3643423061 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1857092836 + 1786330225 = 43094^2 + 42265^2 .

It is a cyclic number.

It is not a de Polignac number, because 3643423061 - 2¹⁰ = 3643422037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3643420061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821711530 + 1821711531.

It is an arithmetic number, because the mean of its divisors is an integer number (1821711531).

Almost surely, 2^3643423061 is an apocalyptic number.

It is an amenable number.

3643423061 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643423061 is an equidigital number, since it uses as much as digits as its factorization.

3643423061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 3643423061 is about 60360.7741915228. The cubic root of 3643423061 is about 1538.7563835547.

It can be divided in two parts, 36434 and 23061, that added together give a palindrome (59495).

The spelling of 3643423061 in words is "three billion, six hundred forty-three million, four hundred twenty-three thousand, sixty-one".