70667 has 2 divisors, whose sum is σ = 70668. Its totient is φ = 70666.

The previous prime is 70663. The next prime is 70687. The reversal of 70667 is 76607.

It is a weak prime.

It is an emirp because it is prime and its reverse (76607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70667 - 2² = 70663 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35333 + 35334.

It is an arithmetic number, because the mean of its divisors is an integer number (35334).

2⁷⁰⁶⁶⁷ is an apocalyptic number.

70667 is a deficient number, since it is larger than the sum of its proper divisors (1).

70667 is an equidigital number, since it uses as much as digits as its factorization.

70667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 70667 is about 265.8326541266. The cubic root of 70667 is about 41.3433392934.

It can be divided in two parts, 70 and 667, that added together give a palindrome (737).

The spelling of 70667 in words is "seventy thousand, six hundred sixty-seven".