61738 has 4 divisors (see below), whose sum is σ = 92610. Its totient is φ = 30868.

The previous prime is 61729. The next prime is 61751. The reversal of 61738 is 83716.

61738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 61009 + 729 = 247^2 + 27^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

61738 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15433 + ... + 15436.

2⁶¹⁷³⁸ is an apocalyptic number.

61738 is a deficient number, since it is larger than the sum of its proper divisors (30872).

61738 is a wasteful number, since it uses less digits than its factorization.

61738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30871.

The product of its digits is 1008, while the sum is 25.

The square root of 61738 is about 248.4713263135. The cubic root of 61738 is about 39.5230864347.

The spelling of 61738 in words is "sixty-one thousand, seven hundred thirty-eight".