813448047 has 8 divisors (see below), whose sum is σ = 1086808320. Its totient is φ = 541193240.

The previous prime is 813448043. The next prime is 813448063. The reversal of 813448047 is 740844318.

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 813448047 - 2² = 813448043 is a prime.

It is a super-2 number, since 2×813448047² = 1323395450336228418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 813447996 and 813448014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813448043) 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, 274647 + ... + 277592.

It is an arithmetic number, because the mean of its divisors is an integer number (135851040).

Almost surely, 2^813448047 is an apocalyptic number.

813448047 is a deficient number, since it is larger than the sum of its proper divisors (273360273).

813448047 is a wasteful number, since it uses less digits than its factorization.

813448047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552733.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 813448047 is about 28521.0106237489. The cubic root of 813448047 is about 933.4905810593.

The spelling of 813448047 in words is "eight hundred thirteen million, four hundred forty-eight thousand, forty-seven".