67672979 has 8 divisors (see below), whose sum is σ = 76371120. Its totient is φ = 59399200.

The previous prime is 67672967. The next prime is 67672987. The reversal of 67672979 is 97927676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67672979 - 2⁸ = 67672723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67672979.

It is not an unprimeable number, because it can be changed into a prime (67672079) 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 7 ways as a sum of consecutive naturals, for example, 105752 + ... + 106389.

It is an arithmetic number, because the mean of its divisors is an integer number (9546390).

Almost surely, 2^67672979 is an apocalyptic number.

67672979 is a deficient number, since it is larger than the sum of its proper divisors (8698141).

67672979 is a wasteful number, since it uses less digits than its factorization.

67672979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212181.

The product of its digits is 2000376, while the sum is 53.

The square root of 67672979 is about 8226.3587935368. The cubic root of 67672979 is about 407.5101511767.

The spelling of 67672979 in words is "sixty-seven million, six hundred seventy-two thousand, nine hundred seventy-nine".