67671670 has 24 divisors (see below), whose sum is σ = 133891632. Its totient is φ = 24607440.

The previous prime is 67671661. The next prime is 67671677. The reversal of 67671670 is 7617676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67671677) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 26754 + ... + 29173.

It is an arithmetic number, because the mean of its divisors is an integer number (5578818).

Almost surely, 2^67671670 is an apocalyptic number.

67671670 is a deficient number, since it is larger than the sum of its proper divisors (66219962).

67671670 is a wasteful number, since it uses less digits than its factorization.

67671670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55956 (or 55945 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 67671670 is about 8226.2792318277. The cubic root of 67671670 is about 407.5075236670.

The spelling of 67671670 in words is "sixty-seven million, six hundred seventy-one thousand, six hundred seventy".