616634 has 4 divisors (see below), whose sum is σ = 924954. Its totient is φ = 308316.

The previous prime is 616597. The next prime is 616639. The reversal of 616634 is 436616.

616634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 418609 + 198025 = 647^2 + 445^2 .

It is not an unprimeable number, because it can be changed into a prime (616639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154157 + ... + 154160.

2⁶¹⁶⁶³⁴ is an apocalyptic number.

616634 is a deficient number, since it is larger than the sum of its proper divisors (308320).

616634 is a wasteful number, since it uses less digits than its factorization.

616634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308319.

The product of its digits is 2592, while the sum is 26.

The square root of 616634 is about 785.2604663422. The cubic root of 616634 is about 85.1155981963.

The spelling of 616634 in words is "six hundred sixteen thousand, six hundred thirty-four".