851672099 has 2 divisors, whose sum is σ = 851672100. Its totient is φ = 851672098.

The previous prime is 851672089. The next prime is 851672161. The reversal of 851672099 is 990276158.

851672099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 851672099 - 2¹² = 851668003 is a prime.

It is not a weakly prime, because it can be changed into another prime (851672009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425836049 + 425836050.

It is an arithmetic number, because the mean of its divisors is an integer number (425836050).

Almost surely, 2^851672099 is an apocalyptic number.

851672099 is a deficient number, since it is larger than the sum of its proper divisors (1).

851672099 is an equidigital number, since it uses as much as digits as its factorization.

851672099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 851672099 is about 29183.4216465445. The cubic root of 851672099 is about 947.8889778861. Note that the first 3 decimals are identical.

The spelling of 851672099 in words is "eight hundred fifty-one million, six hundred seventy-two thousand, ninety-nine".