855880898 has 4 divisors (see below), whose sum is σ = 1283821350. Its totient is φ = 427940448.

The previous prime is 855880849. The next prime is 855880937. The reversal of 855880898 is 898088558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 898088558 = 2 ⋅449044279.

It can be written as a sum of positive squares in only one way, i.e., 658281649 + 197599249 = 25657^2 + 14057^2 .

It is a super-2 number, since 2×855880898² = 1465064223122572808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213970223 + ... + 213970226.

Almost surely, 2^855880898 is an apocalyptic number.

855880898 is a deficient number, since it is larger than the sum of its proper divisors (427940452).

855880898 is a wasteful number, since it uses less digits than its factorization.

855880898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427940451.

The product of its (nonzero) digits is 7372800, while the sum is 59.

The square root of 855880898 is about 29255.4421945730. The cubic root of 855880898 is about 949.4478409091.

The spelling of 855880898 in words is "eight hundred fifty-five million, eight hundred eighty thousand, eight hundred ninety-eight".