803650073 has 6 divisors (see below), whose sum is σ = 813456234. Its totient is φ = 793960736.

The previous prime is 803650021. The next prime is 803650093. The reversal of 803650073 is 370056308.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 410143504 + 393506569 = 20252^2 + 19837^2 .

It is not a de Polignac number, because 803650073 - 2¹⁴ = 803633689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (803650013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51440 + ... + 65217.

It is an arithmetic number, because the mean of its divisors is an integer number (135576039).

Almost surely, 2^803650073 is an apocalyptic number.

803650073 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

803650073 is a deficient number, since it is larger than the sum of its proper divisors (9806161).

803650073 is an equidigital number, since it uses as much as digits as its factorization.

803650073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116823 (or 116740 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 803650073 is about 28348.7225990872. The cubic root of 803650073 is about 929.7274697650.

The spelling of 803650073 in words is "eight hundred three million, six hundred fifty thousand, seventy-three".