812049078 has 16 divisors (see below), whose sum is σ = 1629290736. Its totient is φ = 269817600.

The previous prime is 812049071. The next prime is 812049089. The reversal of 812049078 is 870940218.

812049078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-5 number, since 5×812049078⁵ (a number of 46 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812049071) 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, 214323 + ... + 218078.

It is an arithmetic number, because the mean of its divisors is an integer number (101830671).

Almost surely, 2^812049078 is an apocalyptic number.

812049078 is an abundant number, since it is smaller than the sum of its proper divisors (817241658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812049078 is a wasteful number, since it uses less digits than its factorization.

812049078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432719.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 812049078 is about 28496.4748346177. The cubic root of 812049078 is about 932.9551345531.

The spelling of 812049078 in words is "eight hundred twelve million, forty-nine thousand, seventy-eight".