3642674389 has 2 divisors, whose sum is σ = 3642674390. Its totient is φ = 3642674388.

The previous prime is 3642674267. The next prime is 3642674393. The reversal of 3642674389 is 9834762463.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3247062289 + 395612100 = 56983^2 + 19890^2 .

It is a cyclic number.

It is not a de Polignac number, because 3642674389 - 2¹⁹ = 3642150101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3642675389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821337194 + 1821337195.

It is an arithmetic number, because the mean of its divisors is an integer number (1821337195).

Almost surely, 2^3642674389 is an apocalyptic number.

It is an amenable number.

3642674389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642674389 is an equidigital number, since it uses as much as digits as its factorization.

3642674389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 52.

The square root of 3642674389 is about 60354.5722294509. The cubic root of 3642674389 is about 1538.6509787639.

The spelling of 3642674389 in words is "three billion, six hundred forty-two million, six hundred seventy-four thousand, three hundred eighty-nine".