67780034 has 24 divisors (see below), whose sum is σ = 123415488. Its totient is φ = 27784680.

The previous prime is 67780033. The next prime is 67780051. The reversal of 67780034 is 43008776.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67779976 and 67780003.

It is not an unprimeable number, because it can be changed into a prime (67780033) 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 11 ways as a sum of consecutive naturals, for example, 12782 + ... + 17289.

It is an arithmetic number, because the mean of its divisors is an integer number (5142312).

Almost surely, 2^67780034 is an apocalyptic number.

67780034 is a deficient number, since it is larger than the sum of its proper divisors (55635454).

67780034 is a wasteful number, since it uses less digits than its factorization.

67780034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30110 (or 30103 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 67780034 is about 8232.8630499966. The cubic root of 67780034 is about 407.7249243177.

The spelling of 67780034 in words is "sixty-seven million, seven hundred eighty thousand, thirty-four".