67688625 has 16 divisors (see below), whose sum is σ = 112634496. Its totient is φ = 36100400.

The previous prime is 67688623. The next prime is 67688633. The reversal of 67688625 is 52688676.

It is not a de Polignac number, because 67688625 - 2¹ = 67688623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67688623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89877 + ... + 90626.

It is an arithmetic number, because the mean of its divisors is an integer number (7039656).

Almost surely, 2^67688625 is an apocalyptic number.

It is an amenable number.

67688625 is a deficient number, since it is larger than the sum of its proper divisors (44945871).

67688625 is a wasteful number, since it uses less digits than its factorization.

67688625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180521 (or 180511 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 67688625 is about 8227.3097060947. The cubic root of 67688625 is about 407.5415542203.

The spelling of 67688625 in words is "sixty-seven million, six hundred eighty-eight thousand, six hundred twenty-five".