67830761 has 2 divisors, whose sum is σ = 67830762. Its totient is φ = 67830760.

The previous prime is 67830757. The next prime is 67830793. The reversal of 67830761 is 16703876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57229225 + 10601536 = 7565^2 + 3256^2 .

It is a cyclic number.

It is not a de Polignac number, because 67830761 - 2² = 67830757 is a prime.

It is a Sophie Germain prime.

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

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (67830701) 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 as a sum of consecutive naturals, namely, 33915380 + 33915381.

It is an arithmetic number, because the mean of its divisors is an integer number (33915381).

Almost surely, 2^67830761 is an apocalyptic number.

It is an amenable number.

67830761 is a deficient number, since it is larger than the sum of its proper divisors (1).

67830761 is an equidigital number, since it uses as much as digits as its factorization.

67830761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 67830761 is about 8235.9432368126. The cubic root of 67830761 is about 407.8266135787.

The spelling of 67830761 in words is "sixty-seven million, eight hundred thirty thousand, seven hundred sixty-one".