3633366397 has 4 divisors (see below), whose sum is σ = 3633486976. Its totient is φ = 3633245820.

The previous prime is 3633366389. The next prime is 3633366403. The reversal of 3633366397 is 7936633363.

3633366397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7936633363 = 197 ⋅40287479.

It is a cyclic number.

It is not a de Polignac number, because 3633366397 - 2³ = 3633366389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3633366397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3633366337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28372 + ... + 89842.

It is an arithmetic number, because the mean of its divisors is an integer number (908371744).

Almost surely, 2^3633366397 is an apocalyptic number.

It is an amenable number.

3633366397 is a deficient number, since it is larger than the sum of its proper divisors (120579).

3633366397 is an equidigital number, since it uses as much as digits as its factorization.

3633366397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120578.

The product of its digits is 3306744, while the sum is 49.

The square root of 3633366397 is about 60277.4119965348. The cubic root of 3633366397 is about 1537.3393081403.

The spelling of 3633366397 in words is "three billion, six hundred thirty-three million, three hundred sixty-six thousand, three hundred ninety-seven".