67963631 has 2 divisors, whose sum is σ = 67963632. Its totient is φ = 67963630.

The previous prime is 67963591. The next prime is 67963663. The reversal of 67963631 is 13636976.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67963631 is a prime.

It is a super-2 number, since 2×67963631² = 9238110277408322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67963681) 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 as a sum of consecutive naturals, namely, 33981815 + 33981816.

It is an arithmetic number, because the mean of its divisors is an integer number (33981816).

Almost surely, 2^67963631 is an apocalyptic number.

67963631 is a deficient number, since it is larger than the sum of its proper divisors (1).

67963631 is an equidigital number, since it uses as much as digits as its factorization.

67963631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 41.

The square root of 67963631 is about 8244.0057617641. The cubic root of 67963631 is about 408.0927297079.

The spelling of 67963631 in words is "sixty-seven million, nine hundred sixty-three thousand, six hundred thirty-one".