616605023 has 4 divisors (see below), whose sum is σ = 616678848. Its totient is φ = 616531200.

The previous prime is 616605013. The next prime is 616605107. The reversal of 616605023 is 320506616.

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 616605023 - 2¹⁸ = 616342879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616605013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22511 + ... + 41712.

It is an arithmetic number, because the mean of its divisors is an integer number (154169712).

Almost surely, 2^616605023 is an apocalyptic number.

616605023 is a deficient number, since it is larger than the sum of its proper divisors (73825).

616605023 is an equidigital number, since it uses as much as digits as its factorization.

616605023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73824.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 616605023 is about 24831.5328362951. The cubic root of 616605023 is about 851.1426491847.

The spelling of 616605023 in words is "six hundred sixteen million, six hundred five thousand, twenty-three".