616654487 has 6 divisors (see below), whose sum is σ = 624565368. Its totient is φ = 608842572.

The previous prime is 616654411. The next prime is 616654501. The reversal of 616654487 is 784456616.

It is not a de Polignac number, because 616654487 - 2²² = 612460183 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 (616653487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43163 + ... + 55644.

It is an arithmetic number, because the mean of its divisors is an integer number (104094228).

Almost surely, 2^616654487 is an apocalyptic number.

616654487 is a deficient number, since it is larger than the sum of its proper divisors (7910881).

616654487 is an frugal number, since it uses more digits than its factorization.

616654487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98965 (or 98886 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 616654487 is about 24832.5288079970. The cubic root of 616654487 is about 851.1654081053.

The spelling of 616654487 in words is "six hundred sixteen million, six hundred fifty-four thousand, four hundred eighty-seven".