855292469 has 2 divisors, whose sum is σ = 855292470. Its totient is φ = 855292468.

The previous prime is 855292441. The next prime is 855292517. The reversal of 855292469 is 964292558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846519025 + 8773444 = 29095^2 + 2962^2 .

It is a cyclic number.

It is not a de Polignac number, because 855292469 - 2⁸ = 855292213 is a prime.

It is a super-2 number, since 2×855292469² = 1463050415056231922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855292169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427646234 + 427646235.

It is an arithmetic number, because the mean of its divisors is an integer number (427646235).

Almost surely, 2^855292469 is an apocalyptic number.

It is an amenable number.

855292469 is a deficient number, since it is larger than the sum of its proper divisors (1).

855292469 is an equidigital number, since it uses as much as digits as its factorization.

855292469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 50.

The square root of 855292469 is about 29245.3837211961. The cubic root of 855292469 is about 949.2302052047.

The spelling of 855292469 in words is "eight hundred fifty-five million, two hundred ninety-two thousand, four hundred sixty-nine".