67670397 has 12 divisors (see below), whose sum is σ = 101366720. Its totient is φ = 45113436.

The previous prime is 67670371. The next prime is 67670399. The reversal of 67670397 is 79307676.

It is not a de Polignac number, because 67670397 - 2¹⁶ = 67604861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67670399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138997 + ... + 139482.

Almost surely, 2^67670397 is an apocalyptic number.

It is an amenable number.

67670397 is a deficient number, since it is larger than the sum of its proper divisors (33696323).

67670397 is an equidigital number, since it uses as much as digits as its factorization.

67670397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278494 (or 278482 counting only the distinct ones).

The product of its (nonzero) digits is 333396, while the sum is 45.

The square root of 67670397 is about 8226.2018574796. The cubic root of 67670397 is about 407.5049683864.

The spelling of 67670397 in words is "sixty-seven million, six hundred seventy thousand, three hundred ninety-seven".