67485621 has 16 divisors (see below), whose sum is σ = 102979584. Its totient is φ = 38509104.

The previous prime is 67485577. The next prime is 67485623. The reversal of 67485621 is 12658476.

It is not a de Polignac number, because 67485621 - 2¹⁰ = 67484597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67485621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67485623) 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, 16816 + ... + 20438.

It is an arithmetic number, because the mean of its divisors is an integer number (6436224).

Almost surely, 2^67485621 is an apocalyptic number.

It is an amenable number.

67485621 is a deficient number, since it is larger than the sum of its proper divisors (35493963).

67485621 is a wasteful number, since it uses less digits than its factorization.

67485621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520.

The product of its digits is 80640, while the sum is 39.

The square root of 67485621 is about 8214.9632378971. The cubic root of 67485621 is about 407.1337288724.

The spelling of 67485621 in words is "sixty-seven million, four hundred eighty-five thousand, six hundred twenty-one".