812097418 has 8 divisors (see below), whose sum is σ = 1328886720. Its totient is φ = 369135180.

The previous prime is 812097413. The next prime is 812097437. The reversal of 812097418 is 814790218.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (812097413) 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, 18456738 + ... + 18456781.

It is an arithmetic number, because the mean of its divisors is an integer number (166110840).

Almost surely, 2^812097418 is an apocalyptic number.

812097418 is a deficient number, since it is larger than the sum of its proper divisors (516789302).

812097418 is a wasteful number, since it uses less digits than its factorization.

812097418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36913532.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 812097418 is about 28497.3229970817. The cubic root of 812097418 is about 932.9736466347.

The spelling of 812097418 in words is "eight hundred twelve million, ninety-seven thousand, four hundred eighteen".