803748421 has 12 divisors (see below), whose sum is σ = 936400332. Its totient is φ = 687875328.

The previous prime is 803748403. The next prime is 803748481. The reversal of 803748421 is 124847308.

It can be written as a sum of positive squares in 2 ways, for example, as 258759396 + 544989025 = 16086^2 + 23345^2 .

It is not a de Polignac number, because 803748421 - 2²³ = 795359813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803748401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20791 + ... + 45163.

It is an arithmetic number, because the mean of its divisors is an integer number (78033361).

Almost surely, 2^803748421 is an apocalyptic number.

It is an amenable number.

803748421 is a deficient number, since it is larger than the sum of its proper divisors (132651911).

803748421 is a wasteful number, since it uses less digits than its factorization.

803748421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25060 (or 25053 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 803748421 is about 28350.4571568079. The cubic root of 803748421 is about 929.7653938610.

The spelling of 803748421 in words is "eight hundred three million, seven hundred forty-eight thousand, four hundred twenty-one".