67220830 has 16 divisors (see below), whose sum is σ = 121228560. Its totient is φ = 26836992.

The previous prime is 67220827. The next prime is 67220837. The reversal of 67220830 is 3802276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67220837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675 + ... + 11614.

It is an arithmetic number, because the mean of its divisors is an integer number (7576785).

Almost surely, 2^67220830 is an apocalyptic number.

67220830 is a deficient number, since it is larger than the sum of its proper divisors (54007730).

67220830 is a wasteful number, since it uses less digits than its factorization.

67220830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 67220830 is about 8198.8310142361. The cubic root of 67220830 is about 406.6005454025.

The spelling of 67220830 in words is "sixty-seven million, two hundred twenty thousand, eight hundred thirty".