67771368 has 96 divisors (see below), whose sum is σ = 214306560. Its totient is φ = 18944640.

The previous prime is 67771351. The next prime is 67771373. The reversal of 67771368 is 86317776.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 22258 + ... + 25118.

It is an arithmetic number, because the mean of its divisors is an integer number (2232360).

Almost surely, 2^67771368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67771368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107153280).

67771368 is an abundant number, since it is smaller than the sum of its proper divisors (146535192).

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

67771368 is a wasteful number, since it uses less digits than its factorization.

67771368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927 (or 2920 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 67771368 is about 8232.3367278070. The cubic root of 67771368 is about 407.7075470529.

The spelling of 67771368 in words is "sixty-seven million, seven hundred seventy-one thousand, three hundred sixty-eight".