64477 has 8 divisors (see below), whose sum is σ = 75392. Its totient is φ = 54000.

The previous prime is 64453. The next prime is 64483. The reversal of 64477 is 77446.

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-64477 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352 + ... + 502.

It is an arithmetic number, because the mean of its divisors is an integer number (9424).

2⁶⁴⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

64477 is a deficient number, since it is larger than the sum of its proper divisors (10915).

64477 is a wasteful number, since it uses less digits than its factorization.

64477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its digits is 4704, while the sum is 28.

The square root of 64477 is about 253.9232167408. The cubic root of 64477 is about 40.0991291324.

It can be divided in two parts, 6 and 4477, that multiplied together give a palindrome (26862).

The spelling of 64477 in words is "sixty-four thousand, four hundred seventy-seven".