898654945 has 4 divisors (see below), whose sum is σ = 1078385940. Its totient is φ = 718923952.

The previous prime is 898654943. The next prime is 898654961. The reversal of 898654945 is 549456898.

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

It can be written as a sum of positive squares in 2 ways, for example, as 400160016 + 498494929 = 20004^2 + 22327^2 .

It is a cyclic number.

It is not a de Polignac number, because 898654945 - 2¹ = 898654943 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 898654945.

It is not an unprimeable number, because it can be changed into a prime (898654943) 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, 89865490 + ... + 89865499.

It is an arithmetic number, because the mean of its divisors is an integer number (269596485).

Almost surely, 2^898654945 is an apocalyptic number.

It is an amenable number.

898654945 is a deficient number, since it is larger than the sum of its proper divisors (179730995).

898654945 is a wasteful number, since it uses less digits than its factorization.

898654945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179730994.

The product of its digits is 12441600, while the sum is 58.

The square root of 898654945 is about 29977.5740346013. The cubic root of 898654945 is about 965.0081683828.

The spelling of 898654945 in words is "eight hundred ninety-eight million, six hundred fifty-four thousand, nine hundred forty-five".