63201906 has 24 divisors (see below), whose sum is σ = 138198060. Its totient is φ = 20873376.

The previous prime is 63201893. The next prime is 63201913. The reversal of 63201906 is 60910236.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 55130625 + 8071281 = 7425^2 + 2841^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63201906.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14145 + ... + 18068.

Almost surely, 2^63201906 is an apocalyptic number.

63201906 is an abundant number, since it is smaller than the sum of its proper divisors (74996154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63201906 is a wasteful number, since it uses less digits than its factorization.

63201906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32330 (or 32327 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 63201906 is about 7949.9626414217. The cubic root of 63201906 is about 398.3303444899.

It can be divided in two parts, 6320190 and 6, that added together give a square (6320196 = 2514²).

The spelling of 63201906 in words is "sixty-three million, two hundred one thousand, nine hundred six".