67776546 has 16 divisors (see below), whose sum is σ = 135660384. Its totient is φ = 22574304.

The previous prime is 67776523. The next prime is 67776587. The reversal of 67776546 is 64567776.

It is a junction number, because it is equal to n+sod(n) for n = 67776495 and 67776504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5430 + ... + 12846.

It is an arithmetic number, because the mean of its divisors is an integer number (8478774).

Almost surely, 2^67776546 is an apocalyptic number.

67776546 is an abundant number, since it is smaller than the sum of its proper divisors (67883838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67776546 is a wasteful number, since it uses less digits than its factorization.

67776546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8945.

The product of its digits is 1481760, while the sum is 48.

The square root of 67776546 is about 8232.6512133091. The cubic root of 67776546 is about 407.7179302771.

The spelling of 67776546 in words is "sixty-seven million, seven hundred seventy-six thousand, five hundred forty-six".