647876541 has 12 divisors (see below), whose sum is σ = 935396448. Its totient is φ = 398692944.

The previous prime is 647876527. The next prime is 647876563. The reversal of 647876541 is 145678746.

It is not a de Polignac number, because 647876541 - 2¹⁰ = 647875517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647876521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 638425 + ... + 639438.

It is an arithmetic number, because the mean of its divisors is an integer number (77949704).

Almost surely, 2^647876541 is an apocalyptic number.

It is an amenable number.

647876541 is a deficient number, since it is larger than the sum of its proper divisors (287519907).

647876541 is a wasteful number, since it uses less digits than its factorization.

647876541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277892 (or 1277879 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 647876541 is about 25453.4190434213. The cubic root of 647876541 is about 865.2947823082.

The spelling of 647876541 in words is "six hundred forty-seven million, eight hundred seventy-six thousand, five hundred forty-one".