66670467 has 4 divisors (see below), whose sum is σ = 88893960. Its totient is φ = 44446976.

The previous prime is 66670453. The next prime is 66670501. The reversal of 66670467 is 76407666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66670467 - 2⁸ = 66670211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66670067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11111742 + ... + 11111747.

It is an arithmetic number, because the mean of its divisors is an integer number (22223490).

Almost surely, 2^66670467 is an apocalyptic number.

66670467 is a deficient number, since it is larger than the sum of its proper divisors (22223493).

66670467 is a wasteful number, since it uses less digits than its factorization.

66670467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22223492.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 66670467 is about 8165.1985278988. The cubic root of 66670467 is about 405.4878376902.

The spelling of 66670467 in words is "sixty-six million, six hundred seventy thousand, four hundred sixty-seven".