64043493 has 8 divisors (see below), whose sum is σ = 85456800. Its totient is φ = 42662928.

The previous prime is 64043429. The next prime is 64043501. The reversal of 64043493 is 39434046.

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

It is not a de Polignac number, because 64043493 - 2⁶ = 64043429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64043423) 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, 3183 + ... + 11756.

It is an arithmetic number, because the mean of its divisors is an integer number (10682100).

Almost surely, 2^64043493 is an apocalyptic number.

It is an amenable number.

64043493 is a deficient number, since it is larger than the sum of its proper divisors (21413307).

64043493 is a wasteful number, since it uses less digits than its factorization.

64043493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16371.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 64043493 is about 8002.7178508304. The cubic root of 64043493 is about 400.0905898988.

The spelling of 64043493 in words is "sixty-four million, forty-three thousand, four hundred ninety-three".