616657474 has 4 divisors (see below), whose sum is σ = 924986214. Its totient is φ = 308328736.

The previous prime is 616657471. The next prime is 616657501. The reversal of 616657474 is 474756616.

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., 557290449 + 59367025 = 23607^2 + 7705^2 .

It is not an unprimeable number, because it can be changed into a prime (616657471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154164367 + ... + 154164370.

Almost surely, 2^616657474 is an apocalyptic number.

616657474 is a deficient number, since it is larger than the sum of its proper divisors (308328740).

616657474 is a wasteful number, since it uses less digits than its factorization.

616657474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308328739.

The product of its digits is 846720, while the sum is 46.

The square root of 616657474 is about 24832.5889508122. The cubic root of 616657474 is about 851.1667824173.

The spelling of 616657474 in words is "six hundred sixteen million, six hundred fifty-seven thousand, four hundred seventy-four".