3673651649 has 2 divisors, whose sum is σ = 3673651650. Its totient is φ = 3673651648.

The previous prime is 3673651633. The next prime is 3673651673. The reversal of 3673651649 is 9461563763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3474277249 + 199374400 = 58943^2 + 14120^2 .

It is a cyclic number.

It is not a de Polignac number, because 3673651649 - 2⁴ = 3673651633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3673651597 and 3673651606.

It is not a weakly prime, because it can be changed into another prime (3673657649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1836825824 + 1836825825.

It is an arithmetic number, because the mean of its divisors is an integer number (1836825825).

Almost surely, 2^3673651649 is an apocalyptic number.

It is an amenable number.

3673651649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3673651649 is an equidigital number, since it uses as much as digits as its factorization.

3673651649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 50.

The square root of 3673651649 is about 60610.6562330421. The cubic root of 3673651649 is about 1543.0002298899. Note that the first 3 decimals are identical.

The spelling of 3673651649 in words is "three billion, six hundred seventy-three million, six hundred fifty-one thousand, six hundred forty-nine".