538406547 has 32 divisors (see below), whose sum is σ = 869460480. Its totient is φ = 289793280.

The previous prime is 538406527. The next prime is 538406587. The reversal of 538406547 is 745604835.

It is not a de Polignac number, because 538406547 - 2¹⁰ = 538405523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 538406499 and 538406508.

It is not an unprimeable number, because it can be changed into a prime (538406527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14188 + ... + 35750.

It is an arithmetic number, because the mean of its divisors is an integer number (27170640).

Almost surely, 2^538406547 is an apocalyptic number.

538406547 is a deficient number, since it is larger than the sum of its proper divisors (331053933).

538406547 is a wasteful number, since it uses less digits than its factorization.

538406547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21643.

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 538406547 is about 23203.5890973789. The cubic root of 538406547 is about 813.5235149228.

The spelling of 538406547 in words is "five hundred thirty-eight million, four hundred six thousand, five hundred forty-seven".