67840337 has 2 divisors, whose sum is σ = 67840338. Its totient is φ = 67840336.

The previous prime is 67840327. The next prime is 67840349. The reversal of 67840337 is 73304876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64657681 + 3182656 = 8041^2 + 1784^2 .

It is a cyclic number.

It is not a de Polignac number, because 67840337 - 2¹⁰ = 67839313 is a prime.

It is a super-2 number, since 2×67840337² = 9204622648547138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67840337.

It is not a weakly prime, because it can be changed into another prime (67840327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33920168 + 33920169.

It is an arithmetic number, because the mean of its divisors is an integer number (33920169).

Almost surely, 2^67840337 is an apocalyptic number.

It is an amenable number.

67840337 is a deficient number, since it is larger than the sum of its proper divisors (1).

67840337 is an equidigital number, since it uses as much as digits as its factorization.

67840337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 67840337 is about 8236.5245704727. The cubic root of 67840337 is about 407.8458043009.

The spelling of 67840337 in words is "sixty-seven million, eight hundred forty thousand, three hundred thirty-seven".