854708623 has 2 divisors, whose sum is σ = 854708624. Its totient is φ = 854708622.

The previous prime is 854708611. The next prime is 854708627. The reversal of 854708623 is 326807458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 854708623 - 2²¹ = 852611471 is a prime.

It is a super-2 number, since 2×854708623² = 1461053660461112258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 854708623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854708627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427354311 + 427354312.

It is an arithmetic number, because the mean of its divisors is an integer number (427354312).

Almost surely, 2^854708623 is an apocalyptic number.

854708623 is a deficient number, since it is larger than the sum of its proper divisors (1).

854708623 is an equidigital number, since it uses as much as digits as its factorization.

854708623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 854708623 is about 29235.4001682891. The cubic root of 854708623 is about 949.0141658843.

The spelling of 854708623 in words is "eight hundred fifty-four million, seven hundred eight thousand, six hundred twenty-three".