851473867 has 2 divisors, whose sum is σ = 851473868. Its totient is φ = 851473866.

The previous prime is 851473813. The next prime is 851473877. The reversal of 851473867 is 768374158.

It is a happy number.

851473867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 851473867 - 2⁷ = 851473739 is a prime.

It is a super-3 number, since 3×851473867³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 851473867.

It is not a weakly prime, because it can be changed into another prime (851473877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425736933 + 425736934.

It is an arithmetic number, because the mean of its divisors is an integer number (425736934).

Almost surely, 2^851473867 is an apocalyptic number.

851473867 is a deficient number, since it is larger than the sum of its proper divisors (1).

851473867 is an equidigital number, since it uses as much as digits as its factorization.

851473867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 49.

The square root of 851473867 is about 29180.0251370694. The cubic root of 851473867 is about 947.8154298197.

The spelling of 851473867 in words is "eight hundred fifty-one million, four hundred seventy-three thousand, eight hundred sixty-seven".