865749898 has 32 divisors (see below), whose sum is σ = 1416240000. Its totient is φ = 394549056.

The previous prime is 865749853. The next prime is 865749901. The reversal of 865749898 is 898947568.

865749898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770365 + ... + 771487.

It is an arithmetic number, because the mean of its divisors is an integer number (44257500).

Almost surely, 2^865749898 is an apocalyptic number.

865749898 is a deficient number, since it is larger than the sum of its proper divisors (550490102).

865749898 is a wasteful number, since it uses less digits than its factorization.

865749898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486.

The product of its digits is 34836480, while the sum is 64.

The square root of 865749898 is about 29423.6282263082. The cubic root of 865749898 is about 953.0832044924.

The spelling of 865749898 in words is "eight hundred sixty-five million, seven hundred forty-nine thousand, eight hundred ninety-eight".