538424785 has 8 divisors (see below), whose sum is σ = 647248680. Its totient is φ = 429980544.

The previous prime is 538424767. The next prime is 538424807. The reversal of 538424785 is 587424835.

It can be written as a sum of positive squares in 4 ways, for example, as 95238081 + 443186704 = 9759^2 + 21052^2 .

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 538424785 - 2⁷ = 538424657 is a prime.

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, 91782 + ... + 97471.

It is an arithmetic number, because the mean of its divisors is an integer number (80906085).

Almost surely, 2^538424785 is an apocalyptic number.

It is an amenable number.

538424785 is a deficient number, since it is larger than the sum of its proper divisors (108823895).

538424785 is a wasteful number, since it uses less digits than its factorization.

538424785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189827.

The product of its digits is 1075200, while the sum is 46.

The square root of 538424785 is about 23203.9820935976. The cubic root of 538424785 is about 813.5327005926.

Subtracting 538424785 from its reverse (587424835), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 538424785 in words is "five hundred thirty-eight million, four hundred twenty-four thousand, seven hundred eighty-five".