803420837 has 2 divisors, whose sum is σ = 803420838. Its totient is φ = 803420836.

The previous prime is 803420803. The next prime is 803420857. The reversal of 803420837 is 738024308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 517608001 + 285812836 = 22751^2 + 16906^2 .

It is a cyclic number.

It is not a de Polignac number, because 803420837 - 2¹² = 803416741 is a prime.

It is equal to p_41312978 and since 803420837 and 41312978 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 803420797 and 803420806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (803420857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401710418 + 401710419.

It is an arithmetic number, because the mean of its divisors is an integer number (401710419).

Almost surely, 2^803420837 is an apocalyptic number.

It is an amenable number.

803420837 is a deficient number, since it is larger than the sum of its proper divisors (1).

803420837 is an equidigital number, since it uses as much as digits as its factorization.

803420837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 803420837 is about 28344.6791655859. The cubic root of 803420837 is about 929.6390617705.

The spelling of 803420837 in words is "eight hundred three million, four hundred twenty thousand, eight hundred thirty-seven".