3667384421 has 2 divisors, whose sum is σ = 3667384422. Its totient is φ = 3667384420.

The previous prime is 3667384411. The next prime is 3667384453. The reversal of 3667384421 is 1244837663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3006328900 + 661055521 = 54830^2 + 25711^2 .

It is an emirp because it is prime and its reverse (1244837663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3667384421 - 2¹⁴ = 3667368037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3667384411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833692210 + 1833692211.

It is an arithmetic number, because the mean of its divisors is an integer number (1833692211).

Almost surely, 2^3667384421 is an apocalyptic number.

It is an amenable number.

3667384421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3667384421 is an equidigital number, since it uses as much as digits as its factorization.

3667384421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The square root of 3667384421 is about 60558.9334532899. The cubic root of 3667384421 is about 1542.1222806844.

The spelling of 3667384421 in words is "three billion, six hundred sixty-seven million, three hundred eighty-four thousand, four hundred twenty-one".