803666398 has 16 divisors (see below), whose sum is σ = 1286162064. Its totient is φ = 375306880.

The previous prime is 803666387. The next prime is 803666429. The reversal of 803666398 is 893666308.

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, 85765 + ... + 94672.

It is an arithmetic number, because the mean of its divisors is an integer number (80385129).

Almost surely, 2^803666398 is an apocalyptic number.

803666398 is a deficient number, since it is larger than the sum of its proper divisors (482495666).

803666398 is a wasteful number, since it uses less digits than its factorization.

803666398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180587.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 803666398 is about 28349.0105294700. The cubic root of 803666398 is about 929.7337650830.

The spelling of 803666398 in words is "eight hundred three million, six hundred sixty-six thousand, three hundred ninety-eight".