817928468 has 24 divisors (see below), whose sum is σ = 1644432384. Its totient is φ = 348703200.

The previous prime is 817928453. The next prime is 817928471. The reversal of 817928468 is 864829718.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71123 + ... + 81818.

It is an arithmetic number, because the mean of its divisors is an integer number (68518016).

Almost surely, 2^817928468 is an apocalyptic number.

It is an amenable number.

817928468 is an abundant number, since it is smaller than the sum of its proper divisors (826503916).

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

817928468 is a wasteful number, since it uses less digits than its factorization.

817928468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153143 (or 153141 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 53.

The square root of 817928468 is about 28599.4487359459. The cubic root of 817928468 is about 935.2013132826.

The spelling of 817928468 in words is "eight hundred seventeen million, nine hundred twenty-eight thousand, four hundred sixty-eight".