518394477 has 16 divisors (see below), whose sum is σ = 704583360. Its totient is φ = 338946432.

The previous prime is 518394451. The next prime is 518394521. The reversal of 518394477 is 774493815.

It is a happy number.

It is not a de Polignac number, because 518394477 - 2¹² = 518390381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518594477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41299 + ... + 52367.

It is an arithmetic number, because the mean of its divisors is an integer number (44036460).

Almost surely, 2^518394477 is an apocalyptic number.

It is an amenable number.

518394477 is a deficient number, since it is larger than the sum of its proper divisors (186188883).

518394477 is a wasteful number, since it uses less digits than its factorization.

518394477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11372.

The product of its digits is 846720, while the sum is 48.

The square root of 518394477 is about 22768.2778663649. The cubic root of 518394477 is about 803.3166872504.

The spelling of 518394477 in words is "five hundred eighteen million, three hundred ninety-four thousand, four hundred seventy-seven".