813027370 has 8 divisors (see below), whose sum is σ = 1463449284. Its totient is φ = 325210944.

The previous prime is 813027349. The next prime is 813027373. The reversal of 813027370 is 73720318.

It can be written as a sum of positive squares in 2 ways, for example, as 731323849 + 81703521 = 27043^2 + 9039^2 .

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

It is a super-2 number, since 2×813027370² = 1322027008738233800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813027373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40651359 + ... + 40651378.

Almost surely, 2^813027370 is an apocalyptic number.

813027370 is a deficient number, since it is larger than the sum of its proper divisors (650421914).

813027370 is a wasteful number, since it uses less digits than its factorization.

813027370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81302744.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 813027370 is about 28513.6348086315. The cubic root of 813027370 is about 933.3296341974.

Adding to 813027370 its reverse (73720318), we get a palindrome (886747688).

The spelling of 813027370 in words is "eight hundred thirteen million, twenty-seven thousand, three hundred seventy".