817803412 has 24 divisors (see below), whose sum is σ = 1465816352. Its totient is φ = 399016800.

The previous prime is 817803403. The next prime is 817803421. The reversal of 817803412 is 214308718.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (817803403) and next prime (817803421).

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, 298087 + ... + 300817.

Almost surely, 2^817803412 is an apocalyptic number.

It is an amenable number.

817803412 is a deficient number, since it is larger than the sum of its proper divisors (648012940).

817803412 is a wasteful number, since it uses less digits than its factorization.

817803412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519 (or 4517 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 817803412 is about 28597.2623165225. The cubic root of 817803412 is about 935.1536487655.

The spelling of 817803412 in words is "eight hundred seventeen million, eight hundred three thousand, four hundred twelve".