616628605 has 8 divisors (see below), whose sum is σ = 740132064. Its totient is φ = 493184400.

The previous prime is 616628599. The next prime is 616628627. The reversal of 616628605 is 506826616.

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

It is not a de Polignac number, because 616628605 - 2⁷ = 616628477 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, 12750 + ... + 37360.

It is an arithmetic number, because the mean of its divisors is an integer number (92516508).

Almost surely, 2^616628605 is an apocalyptic number.

It is an amenable number.

616628605 is a deficient number, since it is larger than the sum of its proper divisors (123503459).

616628605 is a wasteful number, since it uses less digits than its factorization.

616628605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29627.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 616628605 is about 24832.0076715517. The cubic root of 616628605 is about 851.1534996694.

The spelling of 616628605 in words is "six hundred sixteen million, six hundred twenty-eight thousand, six hundred five".