803401665 has 32 divisors (see below), whose sum is σ = 1418083200. Its totient is φ = 385144320.

The previous prime is 803401663. The next prime is 803401699. The reversal of 803401665 is 566104308.

It is not a de Polignac number, because 803401665 - 2¹ = 803401663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (803401663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12670 + ... + 42039.

It is an arithmetic number, because the mean of its divisors is an integer number (44315100).

Almost surely, 2^803401665 is an apocalyptic number.

It is an amenable number.

803401665 is a deficient number, since it is larger than the sum of its proper divisors (614681535).

803401665 is a wasteful number, since it uses less digits than its factorization.

803401665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54817.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 803401665 is about 28344.3409695833. The cubic root of 803401665 is about 929.6316670648.

The spelling of 803401665 in words is "eight hundred three million, four hundred one thousand, six hundred sixty-five".