67563320 has 64 divisors (see below), whose sum is σ = 169741440. Its totient is φ = 23990400.

The previous prime is 67563311. The next prime is 67563361. The reversal of 67563320 is 2336576.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17135 + ... + 20705.

It is an arithmetic number, because the mean of its divisors is an integer number (2652210).

Almost surely, 2^67563320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67563320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84870720).

67563320 is an abundant number, since it is smaller than the sum of its proper divisors (102178120).

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

67563320 is a wasteful number, since it uses less digits than its factorization.

67563320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636 (or 3632 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 67563320 is about 8219.6909917588. The cubic root of 67563320 is about 407.2899189389.

Adding to 67563320 its reverse (2336576), we get a palindrome (69899896).

The spelling of 67563320 in words is "sixty-seven million, five hundred sixty-three thousand, three hundred twenty".