64043497 has 8 divisors (see below), whose sum is σ = 74433600. Its totient is φ = 53963664.

The previous prime is 64043429. The next prime is 64043501. The reversal of 64043497 is 79434046.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64043497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64043197) 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, 77122 + ... + 77947.

It is an arithmetic number, because the mean of its divisors is an integer number (9304200).

Almost surely, 2^64043497 is an apocalyptic number.

It is an amenable number.

64043497 is a deficient number, since it is larger than the sum of its proper divisors (10390103).

64043497 is a wasteful number, since it uses less digits than its factorization.

64043497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155135.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 64043497 is about 8002.7181007455. The cubic root of 64043497 is about 400.0905982284.

The spelling of 64043497 in words is "sixty-four million, forty-three thousand, four hundred ninety-seven".