67667601 has 8 divisors (see below), whose sum is σ = 91099840. Its totient is φ = 44673552.

The previous prime is 67667597. The next prime is 67667603. The reversal of 67667601 is 10676676.

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

It is not a de Polignac number, because 67667601 - 2² = 67667597 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 67667601.

It is not an unprimeable number, because it can be changed into a prime (67667603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109186 + ... + 109803.

It is an arithmetic number, because the mean of its divisors is an integer number (11387480).

Almost surely, 2^67667601 is an apocalyptic number.

It is an amenable number.

67667601 is a deficient number, since it is larger than the sum of its proper divisors (23432239).

67667601 is a wasteful number, since it uses less digits than its factorization.

67667601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219095.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 67667601 is about 8226.0319109520. The cubic root of 67667601 is about 407.4993558899.

The spelling of 67667601 in words is "sixty-seven million, six hundred sixty-seven thousand, six hundred one".