616432329 has 8 divisors (see below), whose sum is σ = 913233120. Its totient is φ = 410954868.

The previous prime is 616432319. The next prime is 616432337. The reversal of 616432329 is 923234616.

616432329 is a `hidden beast` number, since 6 + 1 + 643 + 2 + 3 + 2 + 9 = 666.

It is not a de Polignac number, because 616432329 - 2¹² = 616428233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616432293 and 616432302.

It is not an unprimeable number, because it can be changed into a prime (616432319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11415387 + ... + 11415440.

It is an arithmetic number, because the mean of its divisors is an integer number (114154140).

Almost surely, 2^616432329 is an apocalyptic number.

It is an amenable number.

616432329 is a deficient number, since it is larger than the sum of its proper divisors (296800791).

616432329 is a wasteful number, since it uses less digits than its factorization.

616432329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22830836 (or 22830830 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 616432329 is about 24828.0552802671. The cubic root of 616432329 is about 851.0631812662.

The spelling of 616432329 in words is "six hundred sixteen million, four hundred thirty-two thousand, three hundred twenty-nine".