898201945 has 4 divisors (see below), whose sum is σ = 1077842340. Its totient is φ = 718561552.

The previous prime is 898201879. The next prime is 898201951. The reversal of 898201945 is 549102898.

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 505845081 + 392356864 = 22491^2 + 19808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-898201945 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 898201895 and 898201904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89820190 + ... + 89820199.

It is an arithmetic number, because the mean of its divisors is an integer number (269460585).

Almost surely, 2^898201945 is an apocalyptic number.

It is an amenable number.

898201945 is a deficient number, since it is larger than the sum of its proper divisors (179640395).

898201945 is a wasteful number, since it uses less digits than its factorization.

898201945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179640394.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 898201945 is about 29970.0174340957. The cubic root of 898201945 is about 964.8459918704.

The spelling of 898201945 in words is "eight hundred ninety-eight million, two hundred one thousand, nine hundred forty-five".