813270747 has 8 divisors (see below), whose sum is σ = 1084640256. Its totient is φ = 542040872.

The previous prime is 813270719. The next prime is 813270797. The reversal of 813270747 is 747072318.

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 813270747 - 2⁶ = 813270683 is a prime.

It is a super-2 number, since 2×813270747² = 1322818615851876018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813270797) 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, 20463 + ... + 45224.

It is an arithmetic number, because the mean of its divisors is an integer number (135580032).

Almost surely, 2^813270747 is an apocalyptic number.

813270747 is a deficient number, since it is larger than the sum of its proper divisors (271369509).

813270747 is a wasteful number, since it uses less digits than its factorization.

813270747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69817.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 813270747 is about 28517.9022194831. The cubic root of 813270747 is about 933.4227545985.

The spelling of 813270747 in words is "eight hundred thirteen million, two hundred seventy thousand, seven hundred forty-seven".