616534727 has 4 divisors (see below), whose sum is σ = 636422976. Its totient is φ = 596646480.

The previous prime is 616534703. The next prime is 616534729. The reversal of 616534727 is 727435616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 616534727 - 2¹⁰ = 616533703 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 (616534729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9944078 + ... + 9944139.

It is an arithmetic number, because the mean of its divisors is an integer number (159105744).

Almost surely, 2^616534727 is an apocalyptic number.

616534727 is a deficient number, since it is larger than the sum of its proper divisors (19888249).

616534727 is a wasteful number, since it uses less digits than its factorization.

616534727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19888248.

The product of its digits is 211680, while the sum is 41.

The square root of 616534727 is about 24830.1173376205. The cubic root of 616534727 is about 851.1103031418.

The spelling of 616534727 in words is "six hundred sixteen million, five hundred thirty-four thousand, seven hundred twenty-seven".