616349787 has 4 divisors (see below), whose sum is σ = 821799720. Its totient is φ = 410899856.

The previous prime is 616349777. The next prime is 616349801. The reversal of 616349787 is 787943616.

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 616349787 - 2²⁷ = 482132059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616349777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102724962 + ... + 102724967.

It is an arithmetic number, because the mean of its divisors is an integer number (205449930).

Almost surely, 2^616349787 is an apocalyptic number.

616349787 is a deficient number, since it is larger than the sum of its proper divisors (205449933).

616349787 is a wasteful number, since it uses less digits than its factorization.

616349787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205449932.

The product of its digits is 1524096, while the sum is 51.

The square root of 616349787 is about 24826.3929518567. The cubic root of 616349787 is about 851.0251929964.

The spelling of 616349787 in words is "six hundred sixteen million, three hundred forty-nine thousand, seven hundred eighty-seven".