868869147 has 16 divisors (see below), whose sum is σ = 1200124928. Its totient is φ = 558563040.

The previous prime is 868869109. The next prime is 868869161. The reversal of 868869147 is 741968868.

It is not a de Polignac number, because 868869147 - 2⁷ = 868869019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868869047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9813 + ... + 42825.

It is an arithmetic number, because the mean of its divisors is an integer number (75007808).

Almost surely, 2^868869147 is an apocalyptic number.

868869147 is a deficient number, since it is larger than the sum of its proper divisors (331255781).

868869147 is a wasteful number, since it uses less digits than its factorization.

868869147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33330.

The product of its digits is 4644864, while the sum is 57.

The square root of 868869147 is about 29476.5864204117. The cubic root of 868869147 is about 954.2264679092.

The spelling of 868869147 in words is "eight hundred sixty-eight million, eight hundred sixty-nine thousand, one hundred forty-seven".