67770243 has 16 divisors (see below), whose sum is σ = 100531200. Its totient is φ = 45121320.

The previous prime is 67770239. The next prime is 67770257. The reversal of 67770243 is 34207776.

It is not a de Polignac number, because 67770243 - 2² = 67770239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67770198 and 67770207.

It is not an unprimeable number, because it can be changed into a prime (67770343) 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, 32218 + ... + 34256.

It is an arithmetic number, because the mean of its divisors is an integer number (6283200).

Almost surely, 2^67770243 is an apocalyptic number.

67770243 is a deficient number, since it is larger than the sum of its proper divisors (32760957).

67770243 is a wasteful number, since it uses less digits than its factorization.

67770243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279 (or 3273 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 67770243 is about 8232.2683994146. The cubic root of 67770243 is about 407.7052910681.

The spelling of 67770243 in words is "sixty-seven million, seven hundred seventy thousand, two hundred forty-three".