67670563 has 2 divisors, whose sum is σ = 67670564. Its totient is φ = 67670562.

The previous prime is 67670549. The next prime is 67670567. The reversal of 67670563 is 36507676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67670563 - 2¹⁷ = 67539491 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (67670567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33835281 + 33835282.

It is an arithmetic number, because the mean of its divisors is an integer number (33835282).

Almost surely, 2^67670563 is an apocalyptic number.

67670563 is a deficient number, since it is larger than the sum of its proper divisors (1).

67670563 is an equidigital number, since it uses as much as digits as its factorization.

67670563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 67670563 is about 8226.2119471844. The cubic root of 67670563 is about 407.5053015984.

The spelling of 67670563 in words is "sixty-seven million, six hundred seventy thousand, five hundred sixty-three".