605661634 has 8 divisors (see below), whose sum is σ = 925633980. Its totient is φ = 297116976.

The previous prime is 605661629. The next prime is 605661659. The reversal of 605661634 is 436166506.

It can be written as a sum of positive squares in 2 ways, for example, as 605307609 + 354025 = 24603^2 + 595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×605661634³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 605661593 and 605661602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2856789 + ... + 2857000.

Almost surely, 2^605661634 is an apocalyptic number.

605661634 is a deficient number, since it is larger than the sum of its proper divisors (319972346).

605661634 is a wasteful number, since it uses less digits than its factorization.

605661634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713844.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 605661634 is about 24610.1937009850. The cubic root of 605661634 is about 846.0772572971.

The spelling of 605661634 in words is "six hundred five million, six hundred sixty-one thousand, six hundred thirty-four".