501961 has 8 divisors (see below), whose sum is σ = 547200. Its totient is φ = 458640.

The previous prime is 501953. The next prime is 501967. The reversal of 501961 is 169105.

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 501961 - 2³ = 501953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (501967) 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, 96 + ... + 1006.

It is an arithmetic number, because the mean of its divisors is an integer number (68400).

2⁵⁰¹⁹⁶¹ is an apocalyptic number.

It is an amenable number.

501961 is a deficient number, since it is larger than the sum of its proper divisors (45239).

501961 is a wasteful number, since it uses less digits than its factorization.

501961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 501961 is about 708.4920606471. The cubic root of 501961 is about 79.4736803557.

The spelling of 501961 in words is "five hundred one thousand, nine hundred sixty-one".