3632397961 has 4 divisors (see below), whose sum is σ = 3709683072. Its totient is φ = 3555112852.

The previous prime is 3632397947. The next prime is 3632398013. The reversal of 3632397961 is 1697932363.

3632397961 is digitally balanced in base 2 and base 3, because in such bases 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.

It is a cyclic number.

It is not a de Polignac number, because 3632397961 - 2⁷ = 3632397833 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3632397761) 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, 38642485 + ... + 38642578.

It is an arithmetic number, because the mean of its divisors is an integer number (927420768).

Almost surely, 2^3632397961 is an apocalyptic number.

It is an amenable number.

3632397961 is a deficient number, since it is larger than the sum of its proper divisors (77285111).

3632397961 is an equidigital number, since it uses as much as digits as its factorization.

3632397961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77285110.

The product of its digits is 1102248, while the sum is 49.

The square root of 3632397961 is about 60269.3783027501. The cubic root of 3632397961 is about 1537.2027087388.

The spelling of 3632397961 in words is "three billion, six hundred thirty-two million, three hundred ninety-seven thousand, nine hundred sixty-one".