812758030 has 16 divisors (see below), whose sum is σ = 1671959520. Its totient is φ = 278659872.

The previous prime is 812758027. The next prime is 812758033. The reversal of 812758030 is 30857218.

It is an interprime number because it is at equal distance from previous prime (812758027) and next prime (812758033).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812758033) 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 7 ways as a sum of consecutive naturals, for example, 5805345 + ... + 5805484.

It is an arithmetic number, because the mean of its divisors is an integer number (104497470).

Almost surely, 2^812758030 is an apocalyptic number.

812758030 is an abundant number, since it is smaller than the sum of its proper divisors (859201490).

812758030 is a wasteful number, since it uses less digits than its factorization.

812758030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610843.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 812758030 is about 28508.9114138018. The cubic root of 812758030 is about 933.2265582217.

The spelling of 812758030 in words is "eight hundred twelve million, seven hundred fifty-eight thousand, thirty".