64673429 has 8 divisors (see below), whose sum is σ = 65669760. Its totient is φ = 63681696.

The previous prime is 64673407. The next prime is 64673437. The reversal of 64673429 is 92437646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64673429 - 2²⁰ = 63624853 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 (64673449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36017 + ... + 37769.

It is an arithmetic number, because the mean of its divisors is an integer number (8208720).

Almost surely, 2^64673429 is an apocalyptic number.

It is an amenable number.

64673429 is a deficient number, since it is larger than the sum of its proper divisors (996331).

64673429 is a wasteful number, since it uses less digits than its factorization.

64673429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299.

The product of its digits is 217728, while the sum is 41.

The square root of 64673429 is about 8041.9791718208. The cubic root of 64673429 is about 401.3980847874.

The spelling of 64673429 in words is "sixty-four million, six hundred seventy-three thousand, four hundred twenty-nine".