804512971 has 2 divisors, whose sum is σ = 804512972. Its totient is φ = 804512970.

The previous prime is 804512939. The next prime is 804512987. The reversal of 804512971 is 179215408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 804512971 - 2⁵ = 804512939 is a prime.

It is a super-2 number, since 2×804512971² = 1294482241014493682, which contains 22 as substring.

It is equal to p_41366269 and since 804512971 and 41366269 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 804512971.

It is not a weakly prime, because it can be changed into another prime (804582971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402256485 + 402256486.

It is an arithmetic number, because the mean of its divisors is an integer number (402256486).

Almost surely, 2^804512971 is an apocalyptic number.

804512971 is a deficient number, since it is larger than the sum of its proper divisors (1).

804512971 is an equidigital number, since it uses as much as digits as its factorization.

804512971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 804512971 is about 28363.9378613055. The cubic root of 804512971 is about 930.0601074960.

The spelling of 804512971 in words is "eight hundred four million, five hundred twelve thousand, nine hundred seventy-one".