3633622397 has 2 divisors, whose sum is σ = 3633622398. Its totient is φ = 3633622396.

The previous prime is 3633622393. The next prime is 3633622403. The reversal of 3633622397 is 7932263363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2932114201 + 701508196 = 54149^2 + 26486^2 .

It is a cyclic number.

It is not a de Polignac number, because 3633622397 - 2² = 3633622393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3633622393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1816811198 + 1816811199.

It is an arithmetic number, because the mean of its divisors is an integer number (1816811199).

Almost surely, 2^3633622397 is an apocalyptic number.

It is an amenable number.

3633622397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3633622397 is an equidigital number, since it uses as much as digits as its factorization.

3633622397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 44.

The square root of 3633622397 is about 60279.5354743216. The cubic root of 3633622397 is about 1537.3754132815.

The spelling of 3633622397 in words is "three billion, six hundred thirty-three million, six hundred twenty-two thousand, three hundred ninety-seven".