616634854 has 16 divisors (see below), whose sum is σ = 1062146880. Its totient is φ = 265536360.

The previous prime is 616634839. The next prime is 616634923. The reversal of 616634854 is 458436616.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 616634854.

It is a congruent number.

It is an unprimeable number.

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, 737184 + ... + 738019.

It is an arithmetic number, because the mean of its divisors is an integer number (66384180).

Almost surely, 2^616634854 is an apocalyptic number.

616634854 is a deficient number, since it is larger than the sum of its proper divisors (445512026).

616634854 is a wasteful number, since it uses less digits than its factorization.

616634854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475235.

The product of its digits is 414720, while the sum is 43.

The square root of 616634854 is about 24832.1334967417. The cubic root of 616634854 is about 851.1563748956.

The spelling of 616634854 in words is "six hundred sixteen million, six hundred thirty-four thousand, eight hundred fifty-four".