616543487 has 8 divisors (see below), whose sum is σ = 707782656. Its totient is φ = 526094712.

The previous prime is 616543463. The next prime is 616543493. The reversal of 616543487 is 784345616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616543487 - 2⁶ = 616543423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616543387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195923 + ... + 199044.

It is an arithmetic number, because the mean of its divisors is an integer number (88472832).

Almost surely, 2^616543487 is an apocalyptic number.

616543487 is a deficient number, since it is larger than the sum of its proper divisors (91239169).

616543487 is a wasteful number, since it uses less digits than its factorization.

616543487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395197.

The product of its digits is 483840, while the sum is 44.

The square root of 616543487 is about 24830.2937356770. The cubic root of 616543487 is about 851.1143341075.

The spelling of 616543487 in words is "six hundred sixteen million, five hundred forty-three thousand, four hundred eighty-seven".