898629887 has 4 divisors (see below), whose sum is σ = 900554616. Its totient is φ = 896705160.

The previous prime is 898629883. The next prime is 898629913. The reversal of 898629887 is 788926898.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788926898 = 2 ⋅394463449.

It is a cyclic number.

It is not a de Polignac number, because 898629887 - 2² = 898629883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898629883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961664 + ... + 962597.

It is an arithmetic number, because the mean of its divisors is an integer number (225138654).

Almost surely, 2^898629887 is an apocalyptic number.

898629887 is a deficient number, since it is larger than the sum of its proper divisors (1924729).

898629887 is a wasteful number, since it uses less digits than its factorization.

898629887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924728.

The product of its digits is 27869184, while the sum is 65.

The square root of 898629887 is about 29977.1560859265. The cubic root of 898629887 is about 964.9991989040. Note that the first 3 decimals are identical.

The spelling of 898629887 in words is "eight hundred ninety-eight million, six hundred twenty-nine thousand, eight hundred eighty-seven".