616610474 has 4 divisors (see below), whose sum is σ = 924915714. Its totient is φ = 308305236.

The previous prime is 616610471. The next prime is 616610479. The reversal of 616610474 is 474016616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 607277449 + 9333025 = 24643^2 + 3055^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (616610471) 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 as a sum of consecutive naturals, namely, 154152617 + ... + 154152620.

Almost surely, 2^616610474 is an apocalyptic number.

616610474 is a deficient number, since it is larger than the sum of its proper divisors (308305240).

616610474 is a wasteful number, since it uses less digits than its factorization.

616610474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308305239.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 616610474 is about 24831.6425956883. The cubic root of 616610474 is about 851.1451573083.

The spelling of 616610474 in words is "six hundred sixteen million, six hundred ten thousand, four hundred seventy-four".