830578481 has 2 divisors, whose sum is σ = 830578482. Its totient is φ = 830578480.

The previous prime is 830578453. The next prime is 830578487. The reversal of 830578481 is 184875038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440160400 + 390418081 = 20980^2 + 19759^2 .

It is a cyclic number.

It is not a de Polignac number, because 830578481 - 2¹⁸ = 830316337 is a prime.

It is a super-2 number, since 2×830578481² = 1379721226200534722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (830578487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415289240 + 415289241.

It is an arithmetic number, because the mean of its divisors is an integer number (415289241).

Almost surely, 2^830578481 is an apocalyptic number.

It is an amenable number.

830578481 is a deficient number, since it is larger than the sum of its proper divisors (1).

830578481 is an equidigital number, since it uses as much as digits as its factorization.

830578481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 830578481 is about 28819.7585173783. The cubic root of 830578481 is about 939.9979179824.

The spelling of 830578481 in words is "eight hundred thirty million, five hundred seventy-eight thousand, four hundred eighty-one".