805996971 has 24 divisors (see below), whose sum is σ = 1297012080. Its totient is φ = 478892736.

The previous prime is 805996963. The next prime is 805997039. The reversal of 805996971 is 179699508.

It is not a de Polignac number, because 805996971 - 2³ = 805996963 is a prime.

It is a super-2 number, since 2×805996971² = 1299262234522349682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (805916971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115381 + ... + 122166.

It is an arithmetic number, because the mean of its divisors is an integer number (54042170).

Almost surely, 2^805996971 is an apocalyptic number.

805996971 is a deficient number, since it is larger than the sum of its proper divisors (491015109).

805996971 is a wasteful number, since it uses less digits than its factorization.

805996971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237595 (or 237592 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The square root of 805996971 is about 28390.0857871194. The cubic root of 805996971 is about 930.6316174139.

The spelling of 805996971 in words is "eight hundred five million, nine hundred ninety-six thousand, nine hundred seventy-one".