849491753 has 6 divisors (see below), whose sum is σ = 933739002. Its totient is φ = 772265120.

The previous prime is 849491719. The next prime is 849491813. The reversal of 849491753 is 357194948.

It can be written as a sum of positive squares in only one way, i.e., 616379929 + 233111824 = 24827^2 + 15268^2 .

It is not a de Polignac number, because 849491753 - 2²⁴ = 832714537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849491053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3510176 + ... + 3510417.

It is an arithmetic number, because the mean of its divisors is an integer number (155623167).

Almost surely, 2^849491753 is an apocalyptic number.

It is an amenable number.

849491753 is a deficient number, since it is larger than the sum of its proper divisors (84247249).

849491753 is a wasteful number, since it uses less digits than its factorization.

849491753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7020615 (or 7020604 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 849491753 is about 29146.0418067360. The cubic root of 849491753 is about 947.0793970957.

The spelling of 849491753 in words is "eight hundred forty-nine million, four hundred ninety-one thousand, seven hundred fifty-three".