63201961 has 8 divisors (see below), whose sum is σ = 66602880. Its totient is φ = 59808528.

The previous prime is 63201947. The next prime is 63201967. The reversal of 63201961 is 16910236.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63201961 - 2¹³ = 63193769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63201967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27135 + ... + 29371.

It is an arithmetic number, because the mean of its divisors is an integer number (8325360).

Almost surely, 2^63201961 is an apocalyptic number.

It is an amenable number.

63201961 is a deficient number, since it is larger than the sum of its proper divisors (3400919).

63201961 is a wasteful number, since it uses less digits than its factorization.

63201961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 63201961 is about 7949.9661005567. The cubic root of 63201961 is about 398.3304600358.

It can be divided in two parts, 6320 and 1961, that added together give a square (8281 = 91²).

The spelling of 63201961 in words is "sixty-three million, two hundred one thousand, nine hundred sixty-one".