855190471 has 2 divisors, whose sum is σ = 855190472. Its totient is φ = 855190470.

The previous prime is 855190433. The next prime is 855190487. The reversal of 855190471 is 174091558.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 855190471 - 2¹⁷ = 855059399 is a prime.

It is a super-3 number, since 3×855190471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855194471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427595235 + 427595236.

It is an arithmetic number, because the mean of its divisors is an integer number (427595236).

Almost surely, 2^855190471 is an apocalyptic number.

855190471 is a deficient number, since it is larger than the sum of its proper divisors (1).

855190471 is an equidigital number, since it uses as much as digits as its factorization.

855190471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 855190471 is about 29243.6398384332. The cubic root of 855190471 is about 949.1924701862.

The spelling of 855190471 in words is "eight hundred fifty-five million, one hundred ninety thousand, four hundred seventy-one".