813919601 has 8 divisors (see below), whose sum is σ = 916555008. Its totient is φ = 716058000.

The previous prime is 813919583. The next prime is 813919621. The reversal of 813919601 is 106919318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 813919601 - 2²² = 809725297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813919621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193090 + ... + 1193771.

It is an arithmetic number, because the mean of its divisors is an integer number (114569376).

Almost surely, 2^813919601 is an apocalyptic number.

It is an amenable number.

813919601 is a deficient number, since it is larger than the sum of its proper divisors (102635407).

813919601 is a wasteful number, since it uses less digits than its factorization.

813919601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386903.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 813919601 is about 28529.2762088350. The cubic root of 813919601 is about 933.6709270106.

The spelling of 813919601 in words is "eight hundred thirteen million, nine hundred nineteen thousand, six hundred one".