67634101 has 2 divisors, whose sum is σ = 67634102. Its totient is φ = 67634100.

The previous prime is 67634093. The next prime is 67634131. The reversal of 67634101 is 10143676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46922500 + 20711601 = 6850^2 + 4551^2 .

It is a cyclic number.

It is not a de Polignac number, because 67634101 - 2³ = 67634093 is a prime.

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

It is equal to p_3987001 and since 67634101 and 3987001 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67634101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67634131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33817050 + 33817051.

It is an arithmetic number, because the mean of its divisors is an integer number (33817051).

Almost surely, 2^67634101 is an apocalyptic number.

It is an amenable number.

67634101 is a deficient number, since it is larger than the sum of its proper divisors (1).

67634101 is an equidigital number, since it uses as much as digits as its factorization.

67634101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 67634101 is about 8223.9954401738. The cubic root of 67634101 is about 407.4320982876.

Adding to 67634101 its reverse (10143676), we get a palindrome (77777777).

The spelling of 67634101 in words is "sixty-seven million, six hundred thirty-four thousand, one hundred one".