616263 has 4 divisors (see below), whose sum is σ = 821688. Its totient is φ = 410840.

The previous prime is 616261. The next prime is 616277. The reversal of 616263 is 362616.

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

It is a cyclic number.

It is not a de Polignac number, because 616263 - 2¹ = 616261 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616261) 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 in 3 ways as a sum of consecutive naturals, for example, 102708 + ... + 102713.

It is an arithmetic number, because the mean of its divisors is an integer number (205422).

2⁶¹⁶²⁶³ is an apocalyptic number.

616263 is a deficient number, since it is larger than the sum of its proper divisors (205425).

616263 is a wasteful number, since it uses less digits than its factorization.

616263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205424.

The product of its digits is 1296, while the sum is 24.

The square root of 616263 is about 785.0242034485. The cubic root of 616263 is about 85.0985247394.

Adding to 616263 its reverse (362616), we get a palindrome (978879).

The spelling of 616263 in words is "six hundred sixteen thousand, two hundred sixty-three".