854375993 has 2 divisors, whose sum is σ = 854375994. Its totient is φ = 854375992.

The previous prime is 854375981. The next prime is 854376007. The reversal of 854375993 is 399573458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 828691369 + 25684624 = 28787^2 + 5068^2 .

It is a cyclic number.

It is not a de Polignac number, because 854375993 - 2⁸ = 854375737 is a prime.

It is not a weakly prime, because it can be changed into another prime (854375393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427187996 + 427187997.

It is an arithmetic number, because the mean of its divisors is an integer number (427187997).

Almost surely, 2^854375993 is an apocalyptic number.

It is an amenable number.

854375993 is a deficient number, since it is larger than the sum of its proper divisors (1).

854375993 is an equidigital number, since it uses as much as digits as its factorization.

854375993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 53.

The square root of 854375993 is about 29229.7107922744. The cubic root of 854375993 is about 948.8910395024.

The spelling of 854375993 in words is "eight hundred fifty-four million, three hundred seventy-five thousand, nine hundred ninety-three".