855488434 has 4 divisors (see below), whose sum is σ = 1283232654. Its totient is φ = 427744216.

The previous prime is 855488401. The next prime is 855488477. The reversal of 855488434 is 434884558.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 852815209 + 2673225 = 29203^2 + 1635^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213872107 + ... + 213872110.

Almost surely, 2^855488434 is an apocalyptic number.

855488434 is a deficient number, since it is larger than the sum of its proper divisors (427744220).

855488434 is a wasteful number, since it uses less digits than its factorization.

855488434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427744219.

The product of its digits is 2457600, while the sum is 49.

The square root of 855488434 is about 29248.7338871275. The cubic root of 855488434 is about 949.3026956876.

The spelling of 855488434 in words is "eight hundred fifty-five million, four hundred eighty-eight thousand, four hundred thirty-four".