616547871 has 12 divisors (see below), whose sum is σ = 919297600. Its totient is φ = 397772640.

The previous prime is 616547863. The next prime is 616547881. The reversal of 616547871 is 178745616.

It is not a de Polignac number, because 616547871 - 2³ = 616547863 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 (616547831) 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, 1104646 + ... + 1105203.

Almost surely, 2^616547871 is an apocalyptic number.

616547871 is a deficient number, since it is larger than the sum of its proper divisors (302749729).

616547871 is a wasteful number, since it uses less digits than its factorization.

616547871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209886 (or 2209883 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 616547871 is about 24830.3820147818. The cubic root of 616547871 is about 851.1163514166.

The spelling of 616547871 in words is "six hundred sixteen million, five hundred forty-seven thousand, eight hundred seventy-one".