869641743 has 4 divisors (see below), whose sum is σ = 1159522328. Its totient is φ = 579761160.

The previous prime is 869641727. The next prime is 869641789. The reversal of 869641743 is 347146968.

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

It is not a de Polignac number, because 869641743 - 2⁴ = 869641727 is a prime.

It is a super-2 number, since 2×869641743² = 1512553522336156098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 869641692 and 869641701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869641793) 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, 144940288 + ... + 144940293.

It is an arithmetic number, because the mean of its divisors is an integer number (289880582).

Almost surely, 2^869641743 is an apocalyptic number.

869641743 is a deficient number, since it is larger than the sum of its proper divisors (289880585).

869641743 is a wasteful number, since it uses less digits than its factorization.

869641743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289880584.

The product of its digits is 870912, while the sum is 48.

The square root of 869641743 is about 29489.6887572589. The cubic root of 869641743 is about 954.5092159493.

The spelling of 869641743 in words is "eight hundred sixty-nine million, six hundred forty-one thousand, seven hundred forty-three".