813489395 has 16 divisors (see below), whose sum is σ = 998656128. Its totient is φ = 635859840.

The previous prime is 813489379. The next prime is 813489407. The reversal of 813489395 is 593984318.

It is not a de Polignac number, because 813489395 - 2⁴ = 813489379 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152717 + ... + 157953.

It is an arithmetic number, because the mean of its divisors is an integer number (62416008).

Almost surely, 2^813489395 is an apocalyptic number.

813489395 is a deficient number, since it is larger than the sum of its proper divisors (185166733).

813489395 is a wasteful number, since it uses less digits than its factorization.

813489395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950.

The product of its digits is 933120, while the sum is 50.

The square root of 813489395 is about 28521.7354836623. The cubic root of 813489395 is about 933.5063974001.

The spelling of 813489395 in words is "eight hundred thirteen million, four hundred eighty-nine thousand, three hundred ninety-five".