898608155 has 4 divisors (see below), whose sum is σ = 1078329792. Its totient is φ = 718886520.

The previous prime is 898608133. The next prime is 898608167. The reversal of 898608155 is 551806898.

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

It is a de Polignac number, because none of the positive numbers 2^k-898608155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 89860811 + ... + 89860820.

It is an arithmetic number, because the mean of its divisors is an integer number (269582448).

Almost surely, 2^898608155 is an apocalyptic number.

898608155 is a deficient number, since it is larger than the sum of its proper divisors (179721637).

898608155 is a wasteful number, since it uses less digits than its factorization.

898608155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179721636.

The product of its (nonzero) digits is 691200, while the sum is 50.

The square root of 898608155 is about 29976.7936077226. The cubic root of 898608155 is about 964.9914198276.

The spelling of 898608155 in words is "eight hundred ninety-eight million, six hundred eight thousand, one hundred fifty-five".