898400851 has 4 divisors (see below), whose sum is σ = 902358792. Its totient is φ = 894442912.

The previous prime is 898400837. The next prime is 898400857. The reversal of 898400851 is 158004898.

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

It is a cyclic number.

It is not a de Polignac number, because 898400851 - 2¹¹ = 898398803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 898400798 and 898400807.

It is not an unprimeable number, because it can be changed into a prime (898400857) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1978630 + ... + 1979083.

It is an arithmetic number, because the mean of its divisors is an integer number (225589698).

Almost surely, 2^898400851 is an apocalyptic number.

898400851 is a deficient number, since it is larger than the sum of its proper divisors (3957941).

898400851 is a wasteful number, since it uses less digits than its factorization.

898400851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957940.

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 898400851 is about 29973.3356668890. The cubic root of 898400851 is about 964.9172080349.

The spelling of 898400851 in words is "eight hundred ninety-eight million, four hundred thousand, eight hundred fifty-one".