809274982 has 4 divisors (see below), whose sum is σ = 1213912476. Its totient is φ = 404637490.

The previous prime is 809274971. The next prime is 809274997. The reversal of 809274982 is 289472908.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×809274982² = 1309851992982200648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202318744 + ... + 202318747.

It is an arithmetic number, because the mean of its divisors is an integer number (303478119).

Almost surely, 2^809274982 is an apocalyptic number.

809274982 is a deficient number, since it is larger than the sum of its proper divisors (404637494).

809274982 is a wasteful number, since it uses less digits than its factorization.

809274982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404637493.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 809274982 is about 28447.7588220935. The cubic root of 809274982 is about 931.8915453689.

The spelling of 809274982 in words is "eight hundred nine million, two hundred seventy-four thousand, nine hundred eighty-two".