849621607 has 4 divisors (see below), whose sum is σ = 849704200. Its totient is φ = 849539016.

The previous prime is 849621601. The next prime is 849621629. The reversal of 849621607 is 706126948.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 849621607 - 2¹¹ = 849619559 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 (849621601) 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, 23232 + ... + 47317.

It is an arithmetic number, because the mean of its divisors is an integer number (212426050).

Almost surely, 2^849621607 is an apocalyptic number.

849621607 is a deficient number, since it is larger than the sum of its proper divisors (82593).

849621607 is a wasteful number, since it uses less digits than its factorization.

849621607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82592.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 849621607 is about 29148.2693654357. The cubic root of 849621607 is about 947.1276517460.

It can be divided in two parts, 8496 and 21607, that added together give a palindrome (30103).

The spelling of 849621607 in words is "eight hundred forty-nine million, six hundred twenty-one thousand, six hundred seven".