865042967 has 4 divisors (see below), whose sum is σ = 865616976. Its totient is φ = 864468960.

The previous prime is 865042931. The next prime is 865042973. The reversal of 865042967 is 769240568.

865042967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 865042967 - 2¹⁰ = 865041943 is a prime.

It is a super-3 number, since 3×865042967³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865042907) 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, 284738 + ... + 287759.

It is an arithmetic number, because the mean of its divisors is an integer number (216404244).

Almost surely, 2^865042967 is an apocalyptic number.

865042967 is a deficient number, since it is larger than the sum of its proper divisors (574009).

865042967 is a wasteful number, since it uses less digits than its factorization.

865042967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574008.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 865042967 is about 29411.6127915489. The cubic root of 865042967 is about 952.8237194165.

The spelling of 865042967 in words is "eight hundred sixty-five million, forty-two thousand, nine hundred sixty-seven".