67620967 has 2 divisors, whose sum is σ = 67620968. Its totient is φ = 67620966.

The previous prime is 67620947. The next prime is 67620977. The reversal of 67620967 is 76902676.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67620967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67620937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33810483 + 33810484.

It is an arithmetic number, because the mean of its divisors is an integer number (33810484).

Almost surely, 2^67620967 is an apocalyptic number.

67620967 is a deficient number, since it is larger than the sum of its proper divisors (1).

67620967 is an equidigital number, since it uses as much as digits as its factorization.

67620967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 67620967 is about 8223.1968844240. The cubic root of 67620967 is about 407.4057232316.

The spelling of 67620967 in words is "sixty-seven million, six hundred twenty thousand, nine hundred sixty-seven".