67220263 has 4 divisors (see below), whose sum is σ = 73331208. Its totient is φ = 61109320.

The previous prime is 67220249. The next prime is 67220269. The reversal of 67220263 is 36202276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67220263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67220269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055456 + ... + 3055477.

It is an arithmetic number, because the mean of its divisors is an integer number (18332802).

Almost surely, 2^67220263 is an apocalyptic number.

67220263 is a deficient number, since it is larger than the sum of its proper divisors (6110945).

67220263 is a wasteful number, since it uses less digits than its factorization.

67220263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110944.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 67220263 is about 8198.7964360630. The cubic root of 67220263 is about 406.5994021896.

The spelling of 67220263 in words is "sixty-seven million, two hundred twenty thousand, two hundred sixty-three".