803681623 has 4 divisors (see below), whose sum is σ = 820781280. Its totient is φ = 786581968.

The previous prime is 803681597. The next prime is 803681629. The reversal of 803681623 is 326186308.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 803681623 - 2²¹ = 801584471 is a prime.

It is a super-2 number, since 2×803681623² = 1291808302295828258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803681629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8549758 + ... + 8549851.

It is an arithmetic number, because the mean of its divisors is an integer number (205195320).

Almost surely, 2^803681623 is an apocalyptic number.

803681623 is a deficient number, since it is larger than the sum of its proper divisors (17099657).

803681623 is a wasteful number, since it uses less digits than its factorization.

803681623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17099656.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 803681623 is about 28349.2790560889. The cubic root of 803681623 is about 929.7396361373.

The spelling of 803681623 in words is "eight hundred three million, six hundred eighty-one thousand, six hundred twenty-three".