63645246 has 96 divisors (see below), whose sum is σ = 170995968. Its totient is φ = 16692480.

The previous prime is 63645233. The next prime is 63645259. The reversal of 63645246 is 64254636.

63645246 = 119² + 120² + ... + 577².

63645246 is a `hidden beast` number, since 6 + 3 + 645 + 2 + 4 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (63645233) and next prime (63645259).

It is a self number, because there is not a number n which added to its sum of digits gives 63645246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91761 + ... + 92451.

It is an arithmetic number, because the mean of its divisors is an integer number (1781208).

Almost surely, 2^63645246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63645246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85497984).

63645246 is an abundant number, since it is smaller than the sum of its proper divisors (107350722).

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

63645246 is a wasteful number, since it uses less digits than its factorization.

63645246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 763 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 63645246 is about 7977.7970643530. The cubic root of 63645246 is about 399.2595593816.

The spelling of 63645246 in words is "sixty-three million, six hundred forty-five thousand, two hundred forty-six".