809427104 has 12 divisors (see below), whose sum is σ = 1593559674. Its totient is φ = 404713536.

The previous prime is 809427089. The next prime is 809427119. The reversal of 809427104 is 401724908.

It is an interprime number because it is at equal distance from previous prime (809427089) and next prime (809427119).

It can be written as a sum of positive squares in only one way, i.e., 666672400 + 142754704 = 25820^2 + 11948^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12647267 + ... + 12647330.

Almost surely, 2^809427104 is an apocalyptic number.

It is an amenable number.

809427104 is a deficient number, since it is larger than the sum of its proper divisors (784132570).

809427104 is a wasteful number, since it uses less digits than its factorization.

809427104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25294607 (or 25294599 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 809427104 is about 28450.4324044469. The cubic root of 809427104 is about 931.9499319196.

The spelling of 809427104 in words is "eight hundred nine million, four hundred twenty-seven thousand, one hundred four".