813048836 has 12 divisors (see below), whose sum is σ = 1497721680. Its totient is φ = 385128360.

The previous prime is 813048829. The next prime is 813048853. The reversal of 813048836 is 638840318.

It is a happy number.

It is a super-2 number, since 2×813048836² = 1322096819441909792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 813048793 and 813048802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5348930 + ... + 5349081.

It is an arithmetic number, because the mean of its divisors is an integer number (124810140).

Almost surely, 2^813048836 is an apocalyptic number.

It is an amenable number.

813048836 is a deficient number, since it is larger than the sum of its proper divisors (684672844).

813048836 is a wasteful number, since it uses less digits than its factorization.

813048836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10698034 (or 10698032 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 813048836 is about 28514.0112225551. The cubic root of 813048836 is about 933.3378482208.

The spelling of 813048836 in words is "eight hundred thirteen million, forty-eight thousand, eight hundred thirty-six".