63960290 has 16 divisors (see below), whose sum is σ = 121901112. Its totient is φ = 24079104.

The previous prime is 63960271. The next prime is 63960301. The reversal of 63960290 is 9206936.

It can be written as a sum of positive squares in 4 ways, for example, as 63952009 + 8281 = 7997^2 + 91^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63960290.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187949 + ... + 188288.

Almost surely, 2^63960290 is an apocalyptic number.

63960290 is a deficient number, since it is larger than the sum of its proper divisors (57940822).

63960290 is a wasteful number, since it uses less digits than its factorization.

63960290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376261.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 63960290 is about 7997.5177398990. The cubic root of 63960290 is about 399.9172537171.

The spelling of 63960290 in words is "sixty-three million, nine hundred sixty thousand, two hundred ninety".