67780330 has 8 divisors (see below), whose sum is σ = 122004612. Its totient is φ = 27112128.

The previous prime is 67780313. The next prime is 67780331. The reversal of 67780330 is 3308776.

It can be written as a sum of positive squares in 2 ways, for example, as 56295009 + 11485321 = 7503^2 + 3389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (67780331) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3389007 + ... + 3389026.

Almost surely, 2^67780330 is an apocalyptic number.

67780330 is a deficient number, since it is larger than the sum of its proper divisors (54224282).

67780330 is a wasteful number, since it uses less digits than its factorization.

67780330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778040.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 67780330 is about 8232.8810267123. The cubic root of 67780330 is about 407.7255178376.

The spelling of 67780330 in words is "sixty-seven million, seven hundred eighty thousand, three hundred thirty".