813970001 has 8 divisors (see below), whose sum is σ = 877341864. Its totient is φ = 750706560.

The previous prime is 813969991. The next prime is 813970021. The reversal of 813970001 is 100079318.

It can be written as a sum of positive squares in 4 ways, for example, as 363893776 + 450076225 = 19076^2 + 21215^2 .

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 813970001 - 2¹⁸ = 813707857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813970021) 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, 11156 + ... + 41861.

It is an arithmetic number, because the mean of its divisors is an integer number (109667733).

Almost surely, 2^813970001 is an apocalyptic number.

It is an amenable number.

813970001 is a deficient number, since it is larger than the sum of its proper divisors (63371863).

813970001 is a wasteful number, since it uses less digits than its factorization.

813970001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54211.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 813970001 is about 28530.1594983274. The cubic root of 813970001 is about 933.6901983831.

The spelling of 813970001 in words is "eight hundred thirteen million, nine hundred seventy thousand, one".