616488549 has 8 divisors (see below), whose sum is σ = 841100832. Its totient is φ = 401434320.

The previous prime is 616488539. The next prime is 616488553. The reversal of 616488549 is 945884616.

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

It is not a de Polignac number, because 616488549 - 2⁴ = 616488533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616488529) 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, 2389362 + ... + 2389619.

It is an arithmetic number, because the mean of its divisors is an integer number (105137604).

Almost surely, 2^616488549 is an apocalyptic number.

It is an amenable number.

616488549 is a deficient number, since it is larger than the sum of its proper divisors (224612283).

616488549 is a wasteful number, since it uses less digits than its factorization.

616488549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779027.

The product of its digits is 1658880, while the sum is 51.

The square root of 616488549 is about 24829.1874413965. The cubic root of 616488549 is about 851.0890534316.

The spelling of 616488549 in words is "six hundred sixteen million, four hundred eighty-eight thousand, five hundred forty-nine".