601921 has 8 divisors (see below), whose sum is σ = 630504. Its totient is φ = 574080.

The previous prime is 601903. The next prime is 601943. The reversal of 601921 is 129106.

It can be written as a sum of positive squares in 4 ways, for example, as 1296 + 600625 = 36^2 + 775^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 601921 - 2⁵ = 601889 is a prime.

It is a Duffinian number.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2035 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (78813).

2⁶⁰¹⁹²¹ is an apocalyptic number.

It is an amenable number.

601921 is a deficient number, since it is larger than the sum of its proper divisors (28583).

601921 is a wasteful number, since it uses less digits than its factorization.

601921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 601921 is about 775.8356784784. The cubic root of 601921 is about 84.4331836451.

The spelling of 601921 in words is "six hundred one thousand, nine hundred twenty-one".