849195977 has 16 divisors (see below), whose sum is σ = 1003508352. Its totient is φ = 703466880.

The previous prime is 849195961. The next prime is 849195979. The reversal of 849195977 is 779591948.

It is a cyclic number.

It is not a de Polignac number, because 849195977 - 2⁴ = 849195961 is a prime.

It is a super-2 number, since 2×849195977² = 1442267614705969058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (849195979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16883 + ... + 44535.

It is an arithmetic number, because the mean of its divisors is an integer number (62719272).

Almost surely, 2^849195977 is an apocalyptic number.

It is an amenable number.

849195977 is a deficient number, since it is larger than the sum of its proper divisors (154312375).

849195977 is a wasteful number, since it uses less digits than its factorization.

849195977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27808.

The product of its digits is 5715360, while the sum is 59.

The square root of 849195977 is about 29140.9673312332. The cubic root of 849195977 is about 946.9694663157.

The spelling of 849195977 in words is "eight hundred forty-nine million, one hundred ninety-five thousand, nine hundred seventy-seven".