500423641 has 4 divisors (see below), whose sum is σ = 501744400. Its totient is φ = 499102884.

The previous prime is 500423639. The next prime is 500423689. The reversal of 500423641 is 146324005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 500423641 - 2¹ = 500423639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500423041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659811 + ... + 660568.

It is an arithmetic number, because the mean of its divisors is an integer number (125436100).

Almost surely, 2^500423641 is an apocalyptic number.

It is an amenable number.

500423641 is a deficient number, since it is larger than the sum of its proper divisors (1320759).

500423641 is a wasteful number, since it uses less digits than its factorization.

500423641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320758.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 500423641 is about 22370.1506700335. The cubic root of 500423641 is about 793.9246254272.

Adding to 500423641 its reverse (146324005), we get a palindrome (646747646).

The spelling of 500423641 in words is "five hundred million, four hundred twenty-three thousand, six hundred forty-one".