805406982 has 32 divisors (see below), whose sum is σ = 1621490400. Its totient is φ = 266696448.

The previous prime is 805406957. The next prime is 805406983. The reversal of 805406982 is 289604508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805406983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 917928 + ... + 918804.

It is an arithmetic number, because the mean of its divisors is an integer number (50671575).

Almost surely, 2^805406982 is an apocalyptic number.

805406982 is an abundant number, since it is smaller than the sum of its proper divisors (816083418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805406982 is a wasteful number, since it uses less digits than its factorization.

805406982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 805406982 is about 28379.6931273050. The cubic root of 805406982 is about 930.4044881721.

The spelling of 805406982 in words is "eight hundred five million, four hundred six thousand, nine hundred eighty-two".