67399841 has 2 divisors, whose sum is σ = 67399842. Its totient is φ = 67399840.

The previous prime is 67399831. The next prime is 67399847. The reversal of 67399841 is 14899376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57820816 + 9579025 = 7604^2 + 3095^2 .

It is a cyclic number.

It is not a de Polignac number, because 67399841 - 2¹⁴ = 67383457 is a prime.

It is not a weakly prime, because it can be changed into another prime (67399847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33699920 + 33699921.

It is an arithmetic number, because the mean of its divisors is an integer number (33699921).

Almost surely, 2^67399841 is an apocalyptic number.

It is an amenable number.

67399841 is a deficient number, since it is larger than the sum of its proper divisors (1).

67399841 is an equidigital number, since it uses as much as digits as its factorization.

67399841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 67399841 is about 8209.7406170963. The cubic root of 67399841 is about 406.9611551285.

The spelling of 67399841 in words is "sixty-seven million, three hundred ninety-nine thousand, eight hundred forty-one".