64049 has 4 divisors (see below), whose sum is σ = 67440. Its totient is φ = 60660.

The previous prime is 64037. The next prime is 64063. The reversal of 64049 is 94046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64049 - 2⁴ = 64033 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (64019) 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, 1667 + ... + 1704.

It is an arithmetic number, because the mean of its divisors is an integer number (16860).

2⁶⁴⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

64049 is a deficient number, since it is larger than the sum of its proper divisors (3391).

64049 is a wasteful number, since it uses less digits than its factorization.

64049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 64049 is about 253.0790390372. The cubic root of 64049 is about 40.0102057292.

The spelling of 64049 in words is "sixty-four thousand, forty-nine".