849606731 has 8 divisors (see below), whose sum is σ = 853070400. Its totient is φ = 846150400.

The previous prime is 849606721. The next prime is 849606743. The reversal of 849606731 is 137606948.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-849606731 is a prime.

It is a super-2 number, since 2×849606731² = 1443663194721012722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849606721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360206 + ... + 362556.

It is an arithmetic number, because the mean of its divisors is an integer number (106633800).

Almost surely, 2^849606731 is an apocalyptic number.

849606731 is a deficient number, since it is larger than the sum of its proper divisors (3463669).

849606731 is a wasteful number, since it uses less digits than its factorization.

849606731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 849606731 is about 29148.0141862186. The cubic root of 849606731 is about 947.1221239702.

The spelling of 849606731 in words is "eight hundred forty-nine million, six hundred six thousand, seven hundred thirty-one".