67620107 has 4 divisors (see below), whose sum is σ = 71179080. Its totient is φ = 64061136.

The previous prime is 67620097. The next prime is 67620151. The reversal of 67620107 is 70102676.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67620107 - 2¹⁸ = 67357963 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 67620107.

It is not an unprimeable number, because it can be changed into a prime (67620167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779458 + ... + 1779495.

It is an arithmetic number, because the mean of its divisors is an integer number (17794770).

Almost surely, 2^67620107 is an apocalyptic number.

67620107 is a deficient number, since it is larger than the sum of its proper divisors (3558973).

67620107 is a wasteful number, since it uses less digits than its factorization.

67620107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558972.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 67620107 is about 8223.1445931590. The cubic root of 67620107 is about 407.4039961025.

The spelling of 67620107 in words is "sixty-seven million, six hundred twenty thousand, one hundred seven".