804145579 has 2 divisors, whose sum is σ = 804145580. Its totient is φ = 804145578.

The previous prime is 804145541. The next prime is 804145603. The reversal of 804145579 is 975541408.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-804145579 is a prime.

It is a super-2 number, since 2×804145579² = 1293300224450490482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (804145519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402072789 + 402072790.

It is an arithmetic number, because the mean of its divisors is an integer number (402072790).

Almost surely, 2^804145579 is an apocalyptic number.

804145579 is a deficient number, since it is larger than the sum of its proper divisors (1).

804145579 is an equidigital number, since it uses as much as digits as its factorization.

804145579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 804145579 is about 28357.4607290568. The cubic root of 804145579 is about 929.9185109930.

The spelling of 804145579 in words is "eight hundred four million, one hundred forty-five thousand, five hundred seventy-nine".