66467423 has 4 divisors (see below), whose sum is σ = 72509928. Its totient is φ = 60424920.

The previous prime is 66467419. The next prime is 66467461. The reversal of 66467423 is 32476466.

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 66467423 - 2² = 66467419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66467483) 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, 3021236 + ... + 3021257.

It is an arithmetic number, because the mean of its divisors is an integer number (18127482).

Almost surely, 2^66467423 is an apocalyptic number.

66467423 is a deficient number, since it is larger than the sum of its proper divisors (6042505).

66467423 is a wasteful number, since it uses less digits than its factorization.

66467423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042504.

The product of its digits is 145152, while the sum is 38.

The square root of 66467423 is about 8152.7555464395. The cubic root of 66467423 is about 405.0757832072.

The spelling of 66467423 in words is "sixty-six million, four hundred sixty-seven thousand, four hundred twenty-three".