849634 has 4 divisors (see below), whose sum is σ = 1274454. Its totient is φ = 424816.

The previous prime is 849601. The next prime is 849649. The reversal of 849634 is 436948.

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

It can be written as a sum of positive squares in only one way, i.e., 815409 + 34225 = 903^2 + 185^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 849634.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212407 + ... + 212410.

2⁸⁴⁹⁶³⁴ is an apocalyptic number.

849634 is a deficient number, since it is larger than the sum of its proper divisors (424820).

849634 is a wasteful number, since it uses less digits than its factorization.

849634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424819.

The product of its digits is 20736, while the sum is 34.

The square root of 849634 is about 921.7559329888. The cubic root of 849634 is about 94.7132256814.

Subtracting from 849634 its reverse (436948), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 849634 in words is "eight hundred forty-nine thousand, six hundred thirty-four".