850764949 has 4 divisors (see below), whose sum is σ = 900809964. Its totient is φ = 800719936.

The previous prime is 850764877. The next prime is 850764989. The reversal of 850764949 is 949467058.

It is a happy number.

850764949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 619512100 + 231252849 = 24890^2 + 15207^2 .

It is a cyclic number.

It is not a de Polignac number, because 850764949 - 2⁷ = 850764821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 850764896 and 850764905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850764989) 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, 25022482 + ... + 25022515.

It is an arithmetic number, because the mean of its divisors is an integer number (225202491).

Almost surely, 2^850764949 is an apocalyptic number.

It is an amenable number.

850764949 is a deficient number, since it is larger than the sum of its proper divisors (50045015).

850764949 is a wasteful number, since it uses less digits than its factorization.

850764949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50045014.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 850764949 is about 29167.8752911487. The cubic root of 850764949 is about 947.5523135115.

The spelling of 850764949 in words is "eight hundred fifty million, seven hundred sixty-four thousand, nine hundred forty-nine".