60905 has 8 divisors (see below), whose sum is σ = 78792. Its totient is φ = 44928.

The previous prime is 60901. The next prime is 60913. The reversal of 60905 is 50906.

It can be written as a sum of positive squares in 4 ways, for example, as 1369 + 59536 = 37^2 + 244^2 .

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

It is not a de Polignac number, because 60905 - 2² = 60901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404 + ... + 533.

It is an arithmetic number, because the mean of its divisors is an integer number (9849).

2⁶⁰⁹⁰⁵ is an apocalyptic number.

60905 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

60905 is a deficient number, since it is larger than the sum of its proper divisors (17887).

60905 is a wasteful number, since it uses less digits than its factorization.

60905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 60905 is about 246.7893838884. The cubic root of 60905 is about 39.3445258454.

Subtracting from 60905 its reverse (50906), we obtain a palindrome (9999).

The spelling of 60905 in words is "sixty thousand, nine hundred five".