501797965 has 8 divisors (see below), whose sum is σ = 604333080. Its totient is φ = 399988032.

The previous prime is 501797939. The next prime is 501797977. The reversal of 501797965 is 569797105.

It can be written as a sum of positive squares in 4 ways, for example, as 27342441 + 474455524 = 5229^2 + 21782^2 .

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 501797965 - 2⁹ = 501797453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179770 + ... + 182539.

It is an arithmetic number, because the mean of its divisors is an integer number (75541635).

Almost surely, 2^501797965 is an apocalyptic number.

It is an amenable number.

501797965 is a deficient number, since it is larger than the sum of its proper divisors (102535115).

501797965 is a wasteful number, since it uses less digits than its factorization.

501797965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362591.

The product of its (nonzero) digits is 595350, while the sum is 49.

The square root of 501797965 is about 22400.8474170063. The cubic root of 501797965 is about 794.6507517550.

The spelling of 501797965 in words is "five hundred one million, seven hundred ninety-seven thousand, nine hundred sixty-five".