67228678 has 16 divisors (see below), whose sum is σ = 114794496. Its totient is φ = 29229640.

The previous prime is 67228621. The next prime is 67228697. The reversal of 67228678 is 87682276.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65926 + ... + 66937.

It is an arithmetic number, because the mean of its divisors is an integer number (7174656).

Almost surely, 2^67228678 is an apocalyptic number.

67228678 is a deficient number, since it is larger than the sum of its proper divisors (47565818).

67228678 is a wasteful number, since it uses less digits than its factorization.

67228678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132899.

The product of its digits is 451584, while the sum is 46.

The square root of 67228678 is about 8199.3096050826. The cubic root of 67228678 is about 406.6163682603.

It can be divided in two parts, 6722 and 8678, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 67228678 in words is "sixty-seven million, two hundred twenty-eight thousand, six hundred seventy-eight".