67238347 has 16 divisors (see below), whose sum is σ = 75058560. Its totient is φ = 59716800.

The previous prime is 67238333. The next prime is 67238351. The reversal of 67238347 is 74383276.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-67238347 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67238357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202972 + ... + 203302.

It is an arithmetic number, because the mean of its divisors is an integer number (4691160).

Almost surely, 2^67238347 is an apocalyptic number.

67238347 is a deficient number, since it is larger than the sum of its proper divisors (7820213).

67238347 is a wasteful number, since it uses less digits than its factorization.

67238347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714.

The product of its digits is 169344, while the sum is 40.

The square root of 67238347 is about 8199.8992066976. The cubic root of 67238347 is about 406.6358608603.

Subtracting 67238347 from its reverse (74383276), we obtain a square (7144929 = 2673²).

The spelling of 67238347 in words is "sixty-seven million, two hundred thirty-eight thousand, three hundred forty-seven".