819217034 has 8 divisors (see below), whose sum is σ = 1293500640. Its totient is φ = 388050156.

The previous prime is 819217031. The next prime is 819217039. The reversal of 819217034 is 430712918.

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

It is a super-2 number, since 2×819217034² = 1342233097591514312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 819216985 and 819217003.

It is not an unprimeable number, because it can be changed into a prime (819217031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10779134 + ... + 10779209.

It is an arithmetic number, because the mean of its divisors is an integer number (161687580).

Almost surely, 2^819217034 is an apocalyptic number.

819217034 is a deficient number, since it is larger than the sum of its proper divisors (474283606).

819217034 is a wasteful number, since it uses less digits than its factorization.

819217034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21558364.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 819217034 is about 28621.9676821843. The cubic root of 819217034 is about 935.6921615631.

The spelling of 819217034 in words is "eight hundred nineteen million, two hundred seventeen thousand, thirty-four".