809694152 has 32 divisors (see below), whose sum is σ = 1573300800. Its totient is φ = 390196800.

The previous prime is 809694121. The next prime is 809694157. The reversal of 809694152 is 251496908.

It is not an unprimeable number, because it can be changed into a prime (809694157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143627 + ... + 149157.

It is an arithmetic number, because the mean of its divisors is an integer number (49165650).

Almost surely, 2^809694152 is an apocalyptic number.

It is an amenable number.

809694152 is a deficient number, since it is larger than the sum of its proper divisors (763606648).

809694152 is a wasteful number, since it uses less digits than its factorization.

809694152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197 (or 6193 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 809694152 is about 28455.1252325482. The cubic root of 809694152 is about 932.0524109855.

The spelling of 809694152 in words is "eight hundred nine million, six hundred ninety-four thousand, one hundred fifty-two".