64738 has 4 divisors (see below), whose sum is σ = 97110. Its totient is φ = 32368.

The previous prime is 64717. The next prime is 64747. The reversal of 64738 is 83746.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64009 + 729 = 253^2 + 27^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁶ + 4⁵ + 7⁵ + 3⁵ + 8 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16183 + ... + 16186.

2⁶⁴⁷³⁸ is an apocalyptic number.

64738 is a deficient number, since it is larger than the sum of its proper divisors (32372).

64738 is a wasteful number, since it uses less digits than its factorization.

64738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32371.

The product of its digits is 4032, while the sum is 28.

The square root of 64738 is about 254.4366325827. The cubic root of 64738 is about 40.1531627805.

Subtracting from 64738 its product of digits (4032), we obtain a palindrome (60706).

The spelling of 64738 in words is "sixty-four thousand, seven hundred thirty-eight".