500685634 has 4 divisors (see below), whose sum is σ = 751028454. Its totient is φ = 250342816.

The previous prime is 500685607. The next prime is 500685659. The reversal of 500685634 is 436586005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 487747225 + 12938409 = 22085^2 + 3597^2 .

It is a super-2 number, since 2×500685634² = 501372208187963912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 500685593 and 500685602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125171407 + ... + 125171410.

Almost surely, 2^500685634 is an apocalyptic number.

500685634 is a deficient number, since it is larger than the sum of its proper divisors (250342820).

500685634 is a wasteful number, since it uses less digits than its factorization.

500685634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250342819.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 500685634 is about 22376.0057651047. The cubic root of 500685634 is about 794.0631523262.

The spelling of 500685634 in words is "five hundred million, six hundred eighty-five thousand, six hundred thirty-four".