67687045 has 16 divisors (see below), whose sum is σ = 85421952. Its totient is φ = 51388480.

The previous prime is 67687027. The next prime is 67687051. The reversal of 67687045 is 54078676.

It is not a de Polignac number, because 67687045 - 2⁷ = 67686917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67686992 and 67687010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12819 + ... + 17311.

It is an arithmetic number, because the mean of its divisors is an integer number (5338872).

Almost surely, 2^67687045 is an apocalyptic number.

It is an amenable number.

67687045 is a deficient number, since it is larger than the sum of its proper divisors (17734907).

67687045 is a wasteful number, since it uses less digits than its factorization.

67687045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4652.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 67687045 is about 8227.2136838665. The cubic root of 67687045 is about 407.5383832263.

The spelling of 67687045 in words is "sixty-seven million, six hundred eighty-seven thousand, forty-five".