898661867 has 4 divisors (see below), whose sum is σ = 945959880. Its totient is φ = 851363856.

The previous prime is 898661861. The next prime is 898661887. The reversal of 898661867 is 768166898.

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

It is not a de Polignac number, because 898661867 - 2¹⁰ = 898660843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (898661861) 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, 23648978 + ... + 23649015.

It is an arithmetic number, because the mean of its divisors is an integer number (236489970).

Almost surely, 2^898661867 is an apocalyptic number.

898661867 is a deficient number, since it is larger than the sum of its proper divisors (47298013).

898661867 is a wasteful number, since it uses less digits than its factorization.

898661867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47298012.

The product of its digits is 6967296, while the sum is 59.

The square root of 898661867 is about 29977.6894873504. The cubic root of 898661867 is about 965.0106460744.

The spelling of 898661867 in words is "eight hundred ninety-eight million, six hundred sixty-one thousand, eight hundred sixty-seven".