500378197 has 6 divisors (see below), whose sum is σ = 550002614. Its totient is φ = 454889160.

The previous prime is 500378191. The next prime is 500378201. The reversal of 500378197 is 791873005.

It can be written as a sum of positive squares in only one way, i.e., 372258436 + 128119761 = 19294^2 + 11319^2 .

It is not a de Polignac number, because 500378197 - 2³ = 500378189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500378191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2067558 + ... + 2067799.

Almost surely, 2^500378197 is an apocalyptic number.

It is an amenable number.

500378197 is a deficient number, since it is larger than the sum of its proper divisors (49624417).

500378197 is a wasteful number, since it uses less digits than its factorization.

500378197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4135379 (or 4135368 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 500378197 is about 22369.1349184540. The cubic root of 500378197 is about 793.9005923215.

The spelling of 500378197 in words is "five hundred million, three hundred seventy-eight thousand, one hundred ninety-seven".