898516478 has 4 divisors (see below), whose sum is σ = 1347774720. Its totient is φ = 449258238.

The previous prime is 898516471. The next prime is 898516523. The reversal of 898516478 is 874615898.

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

It is a super-2 number, since 2×898516478² = 1614663722475048968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898516471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224629118 + ... + 224629121.

It is an arithmetic number, because the mean of its divisors is an integer number (336943680).

Almost surely, 2^898516478 is an apocalyptic number.

898516478 is a deficient number, since it is larger than the sum of its proper divisors (449258242).

898516478 is a wasteful number, since it uses less digits than its factorization.

898516478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449258241.

The product of its digits is 3870720, while the sum is 56.

The square root of 898516478 is about 29975.2644358644. The cubic root of 898516478 is about 964.9586022135.

The spelling of 898516478 in words is "eight hundred ninety-eight million, five hundred sixteen thousand, four hundred seventy-eight".