608117381 has 4 divisors (see below), whose sum is σ = 612556332. Its totient is φ = 603678432.

The previous prime is 608117369. The next prime is 608117407. The reversal of 608117381 is 183711806.

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

It can be written as a sum of positive squares in 2 ways, for example, as 410265025 + 197852356 = 20255^2 + 14066^2 .

It is a cyclic number.

It is not a de Polignac number, because 608117381 - 2¹⁰ = 608116357 is a prime.

It is a super-2 number, since 2×608117381² = 739613498148598322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (608110381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2219270 + ... + 2219543.

It is an arithmetic number, because the mean of its divisors is an integer number (153139083).

Almost surely, 2^608117381 is an apocalyptic number.

It is an amenable number.

608117381 is a deficient number, since it is larger than the sum of its proper divisors (4438951).

608117381 is a wasteful number, since it uses less digits than its factorization.

608117381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4438950.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 608117381 is about 24660.0361110847. The cubic root of 608117381 is about 847.2192314578.

The spelling of 608117381 in words is "six hundred eight million, one hundred seventeen thousand, three hundred eighty-one".