813701506 has 8 divisors (see below), whose sum is σ = 1246521600. Its totient is φ = 398194308.

The previous prime is 813701503. The next prime is 813701507. The reversal of 813701506 is 605107318.

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

It is a super-2 number, since 2×813701506² = 1324220281733336072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813701503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4328106 + ... + 4328293.

It is an arithmetic number, because the mean of its divisors is an integer number (155815200).

Almost surely, 2^813701506 is an apocalyptic number.

813701506 is a deficient number, since it is larger than the sum of its proper divisors (432820094).

813701506 is a wasteful number, since it uses less digits than its factorization.

813701506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656448.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 813701506 is about 28525.4536510815. The cubic root of 813701506 is about 933.5875251811.

The spelling of 813701506 in words is "eight hundred thirteen million, seven hundred one thousand, five hundred six".