67645606 has 8 divisors (see below), whose sum is σ = 115963920. Its totient is φ = 28990968.

The previous prime is 67645547. The next prime is 67645609. The reversal of 67645606 is 60654676.

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

It is a super-2 number, since 2×67645606² = 9151856022214472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67645609) 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, 2415901 + ... + 2415928.

It is an arithmetic number, because the mean of its divisors is an integer number (14495490).

Almost surely, 2^67645606 is an apocalyptic number.

67645606 is a deficient number, since it is larger than the sum of its proper divisors (48318314).

67645606 is a wasteful number, since it uses less digits than its factorization.

67645606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831838.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 67645606 is about 8224.6948879579. The cubic root of 67645606 is about 407.4551992601.

The spelling of 67645606 in words is "sixty-seven million, six hundred forty-five thousand, six hundred six".