898012642 has 4 divisors (see below), whose sum is σ = 1347018966. Its totient is φ = 449006320.

The previous prime is 898012631. The next prime is 898012649. The reversal of 898012642 is 246210898.

898012642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 833996641 + 64016001 = 28879^2 + 8001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 898012595 and 898012604.

It is not an unprimeable number, because it can be changed into a prime (898012649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224503159 + ... + 224503162.

Almost surely, 2^898012642 is an apocalyptic number.

898012642 is a deficient number, since it is larger than the sum of its proper divisors (449006324).

898012642 is a wasteful number, since it uses less digits than its factorization.

898012642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449006323.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 898012642 is about 29966.8590613030. The cubic root of 898012642 is about 964.7782041920.

The spelling of 898012642 in words is "eight hundred ninety-eight million, twelve thousand, six hundred forty-two".