67770563 has 16 divisors (see below), whose sum is σ = 78886080. Its totient is φ = 57024000.

The previous prime is 67770559. The next prime is 67770589. The reversal of 67770563 is 36507776.

It is a cyclic number.

It is not a de Polignac number, because 67770563 - 2² = 67770559 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 67770563.

It is not an unprimeable number, because it can be changed into a prime (67770553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112463 + ... + 113063.

It is an arithmetic number, because the mean of its divisors is an integer number (4930380).

Almost surely, 2^67770563 is an apocalyptic number.

67770563 is a deficient number, since it is larger than the sum of its proper divisors (11115517).

67770563 is a wasteful number, since it uses less digits than its factorization.

67770563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878.

The product of its (nonzero) digits is 185220, while the sum is 41.

The square root of 67770563 is about 8232.2878351039. The cubic root of 67770563 is about 407.7059327730.

The spelling of 67770563 in words is "sixty-seven million, seven hundred seventy thousand, five hundred sixty-three".