849771445 has 8 divisors (see below), whose sum is σ = 1020963744. Its totient is φ = 678991824.

The previous prime is 849771443. The next prime is 849771451. The reversal of 849771445 is 544177948.

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

It is a cyclic number.

It is not a de Polignac number, because 849771445 - 2¹ = 849771443 is a prime.

It is a super-2 number, since 2×849771445² = 1444223017474776050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849771443) 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, 98619 + ... + 106888.

It is an arithmetic number, because the mean of its divisors is an integer number (127620468).

Almost surely, 2^849771445 is an apocalyptic number.

It is an amenable number.

849771445 is a deficient number, since it is larger than the sum of its proper divisors (171192299).

849771445 is a wasteful number, since it uses less digits than its factorization.

849771445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206339.

The product of its digits is 1128960, while the sum is 49.

The square root of 849771445 is about 29150.8395247890. The cubic root of 849771445 is about 947.1833264801.

The spelling of 849771445 in words is "eight hundred forty-nine million, seven hundred seventy-one thousand, four hundred forty-five".