616783406 has 8 divisors (see below), whose sum is σ = 930523464. Its totient is φ = 306608920.

The previous prime is 616783399. The next prime is 616783411. The reversal of 616783406 is 604387616.

616783406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890960 + ... + 891651.

It is an arithmetic number, because the mean of its divisors is an integer number (116315433).

Almost surely, 2^616783406 is an apocalyptic number.

616783406 is a deficient number, since it is larger than the sum of its proper divisors (313740058).

616783406 is a wasteful number, since it uses less digits than its factorization.

616783406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782786.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 616783406 is about 24835.1244410009. The cubic root of 616783406 is about 851.2247194104.

The spelling of 616783406 in words is "six hundred sixteen million, seven hundred eighty-three thousand, four hundred six".