616346405 has 8 divisors (see below), whose sum is σ = 739832184. Its totient is φ = 492932800.

The previous prime is 616346389. The next prime is 616346417. The reversal of 616346405 is 504643616.

616346405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 58583716 + 557762689 = 7654^2 + 23617^2 .

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

It is not a de Polignac number, because 616346405 - 2⁴ = 616346389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2975 + ... + 35235.

It is an arithmetic number, because the mean of its divisors is an integer number (92479023).

Almost surely, 2^616346405 is an apocalyptic number.

It is an amenable number.

616346405 is a deficient number, since it is larger than the sum of its proper divisors (123485779).

616346405 is a wasteful number, since it uses less digits than its factorization.

616346405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36087.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 616346405 is about 24826.3248387674. The cubic root of 616346405 is about 851.0236364277.

The spelling of 616346405 in words is "six hundred sixteen million, three hundred forty-six thousand, four hundred five".