617121316 has 24 divisors (see below), whose sum is σ = 1237130496. Its totient is φ = 263861760.

The previous prime is 617121289. The next prime is 617121317. The reversal of 617121316 is 613121716.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (617121317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13501 + ... + 37636.

It is an arithmetic number, because the mean of its divisors is an integer number (51547104).

Almost surely, 2^617121316 is an apocalyptic number.

It is an amenable number.

617121316 is an abundant number, since it is smaller than the sum of its proper divisors (620009180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

617121316 is a wasteful number, since it uses less digits than its factorization.

617121316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51579 (or 51577 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 617121316 is about 24841.9265758516. The cubic root of 617121316 is about 851.3801412489.

The spelling of 617121316 in words is "six hundred seventeen million, one hundred twenty-one thousand, three hundred sixteen".